research communications
Crystal structures of 2,3-bis(4-chlorophenyl)-1,3-thiazolidin-4-one and trans-2,3-bis(4-chlorophenyl)-1,3-thiazolidin-4-one 1-oxide
aDepartment of Chemistry, Pennsylvania State University, University Park, PA 16802, USA, bPennsylvania State University, Brandywine Campus, 312 M Main Building, 25, Yearsley Mill Rd, Media, PA 19063, USA, and cPennsylvania State University, Schuylkill Campus, 200 University Drive, Schuylkill Haven, PA 17972, USA
*Correspondence e-mail: ljs43@psu.edu
In the crystal structures of the title compounds, C15H11Cl2NOS, (1), and C15H11Cl2NO2S, (2), wherein (2) is the oxidized form of (1), the thiazolidine ring is attached to two chlorophenyl rings. The chlorophenyl ring on the 2-carbon atom position points in the same direction as that of the S atom in (1), while in (2), the S atom points in the opposite direction. The O atom on the chiral S atom in (2) is trans to the chlorophenyl ring on the 2-carbon. The chlorophenyl ring planes in each structure are close to orthogonal, making dihedral angles of 78.61 (6) and 87.46 (8)° in (1) and (2), respectively. The thiazolidine ring has a twisted conformation on the S—Cmethine bond in (1), and an with the S atom 0.715 (3) Å out of the plane of other four atoms in (2). In the crystal of (1), molecules are linked by C—H⋯O hydrogen bonds, as well as by slipped parallel π–π interactions [inter-centroid distance = 3.840 (3) Å] between inversion-related phenyl rings, forming sheets parallel to (001). In the crystal of (2), molecules are linked via C—H⋯O and C—H⋯Cl hydrogen bonds, forming slabs parallel to (001).
1. Chemical context
1,3-Thiazolidin-4-ones, also known as 4-thiazolidinones, are known to have a wide range of biological activities (Jain et al., 2012; Abhinit et al., 2009; Hamama et al., 2008; Singh et al., 1981; Brown, 1961; Tripathi et al., 2014; Prabhakar et al., 2006). The S-oxides have been observed to show enhanced activity, for example, it was shown that on converting a 4-thiazolidinone to its sulfoxide and sulfone, the oxide showed greater activity against some cancer cell lines than the sulfide (Gududuru et al., 2004). Oxidation from sulfide to sulfoxide makes the sulfur a chiral center, and produces cis and trans with regard to the relationship of the oxygen atom attached to the S atom and the substituent at the 2-position (Rozwadowska et al., 2002; Colombo et al., 2008). The stereocenters may however be configurationally unstable in solution or even in the solid state (Rozwadowska et al., 2002). We have previously reported on the preparation and NMR studies of a series of 2,3-diaryl-1,3-thiazolidin-4-ones in which the two had the same substitution pattern (Tierney et al., 2005). In this study, we report on the S-oxidation of one of these compounds, 2,3-bis(4-chlorophenyl)-1, 3-thiazolidin-4-one (1), with Oxone (Trost & Curran, 1981; Yu et al., 2012; Webb, 1994), which gave compound (2), and on their crystal structures.
2. Structural commentary
The molecular structures of compounds (1) and (2), Figs. 1 and 2, respectively, show a slight dissimilarity in the thiazine ring conformation. In (1), the ring pucker is twisted on the S1—C1 bond, while in (2) the ring has an with atom S1 as the flap. The structures also differ in the disposition of the chlorophenyl ring at atom C1. In (1), this ring points in the same direction as the S atom with respect to the thiazolidine ring plane, while in (2), the S atom points in the opposite direction. The trans relationship between the oxygen atom on the S atom and the aromatic ring on C1 is favoured due to which would occur in the cis isomer. The chlorophenyl rings are almost orthogonal to each other, making a dihedral angle of 78.61 (6)° in (1) and 87.46 (8)° in (2).
Comparison of the two structures shows that the oxygen–sulfur bond in (2) formed on the less hindered side of compound (1), away from the aryl group on C1, leading to a trans stereoisomer. was further relieved by twisting so that both the aryl ring on C1 and the oxygen on S1 became pseudo-axial.
3. Supramolecular features
In the crystal of (1), molecules are linked via C—H⋯O hydrogen bonds, forming chains along [100]; see Table 1 and Fig. 3. The chains are linked via slipped parallel π–π interactions involving inversion-related chlorophenyl rings, leading to the formation of sheets parallel to (001) [Cg3⋯Cg3i = 3.840 (3) Å; Cg3 is the centroid of the C8–C13 ring; inter-planar distance = 3.3364 (7) Å; slippage = 1.901 Å; symmetry code: (i) −x + 2, −y, −z + 2].
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In the crystal of (2), molecules are linked via by C—H⋯O and C—H⋯Cl hydrogen bonds, forming slabs parallel to (001); see Table 2 and Fig. 4.
4. Database survey
Compound (1) differs from the previously reported 2,3-diphenyl-1, 3-thiazolidin-4-one (Yennawar et al., 2014) only in the presence of p-chlorine atoms on both phenyl rings, and the compound does not have a twist in the thiazine ring. Compound (2) is related to 2-aryl-1,3-thiazolidin-4-one 1-oxides, viz. 3-butyl-2-phenyl-1,3-thiazolidine-1,4-dione (Wang et al., 2010), (1b, 2a, 5a)-3, 5-dimethyl-1-oxo-2-phenyl-4-thiazolidinone (Johnson et al., 1983), 2-(2, 6-dichlorophenyl)-3-(4, 5, 6-trimethylpyrimidin-2-yl)-1, 3-thiazolidin-4-one 1-oxide (Chen et al., 2011) and trans-3-benzyl-2-(4-methoxyphenyl)thiazolidin-4-one 1-oxide (Colombo et al., 2008). All five compounds have a trans relationship between the O atom attached to the S atom and the 2-aryl ring.
5. Synthesis and crystallization
Compound (1): prepared as previously reported (Tierney et al., 2005). Colourless block-like crystals were obtained by slow evaporation of a solution in ethanol.Compound (2): 2,3-bis (4-chlorophenyl)-1,3-thiazolidin-4-one (1) (0.326 g, 1 mmol) was added to a 25 ml round-bottom flask. Methanol (4 ml) was added and the mixture was stirred at room temperature before cooling to 273–278 K. A solution of Oxone (0.456 g, 3.0 mmol calculated as KHSO5, 152.2 g mol−1) in distilled water (4 ml) was prepared. This solution (2.67 ml, 2 equivalents) was slowly added to the reaction mixture with stirring at 273–278 K. The reaction was followed by TLC. An additional of Oxone solution (0.67 ml) was added to convert the remaining starting material to sulfoxide. The mixture was extracted three times with methylene chloride. The organic layers were combined and washed with water and saturated NaCl, then dried over sodium sulfate. The solution was concentrated under vacuum to give compound (2) as a crude solid. The solid was recrystallized from a mixture of methylene chloride and hexane, and then dried (yield: 0.2413 g; 70.5%; m.p.: 406–409 K). Colourless plate-like crystals were obtained by slow evaporation of a solution in ethanol.
6. details
Crystal data, data collection and structure . H atoms were positioned geometrically with C—H = 0.93–0.97 Å, and refined as riding with Uiso(H) = 1.2Ueq(C).
details for structures (1) and (2) are summarized in Table 3Supporting information
10.1107/S2056989015001954/su5062sup1.cif
contains datablocks 1, 2, global. DOI:Structure factors: contains datablock 1. DOI: 10.1107/S2056989015001954/su50621sup2.hkl
Structure factors: contains datablock 2. DOI: 10.1107/S2056989015001954/su50622sup3.hkl
Supporting information file. DOI: 10.1107/S2056989015001954/su50621sup4.cml
Supporting information file. DOI: 10.1107/S2056989015001954/su50622sup5.cml
1,3-Thiazolidin-4-ones, also known as 4-thiazolidinones, are known to have a wide range of biological activities (Jain et al., 2012; Abhinit et al., 2009; Hamama et al., 2008; Singh et al., 1981; Brown, 1961; Tripathi et al., 2014; Prabhakar et al., 2006). The S-oxides have been observed to show enhanced activity, for example, it was shown that on converting a 4-thiazolidinone to its sulfoxide and sulfone, the oxide showed greater activity against some cancer cell lines than the sulfide (Gududuru et al., 2004). Oxidation from sulfide to sulfoxide makes the sulfur a chiral center, and produces cis and trans
with regard to the relationship of the oxygen on the sulfur atom and the substituent at the 2-position (Rozwadowska et al., 2002; Colombo et al., 2008). The stereocenters may however be configurationally unstable in solution or even in the solid state (Rozwadowska et al., 2002). We have previously reported on the preparation and NMR studies of a series of 2,3-diaryl-1,3-thiazolidin-4-ones in which the two had the same substitution pattern (Tierney et al., 2005). In this study, we report on the S-oxidation of one of these compounds, 2,3-bis(4-chlorophenyl)-1, 3-thiazolidin-4-one (1), with oxone (Trost & Curran, 1981; Yu et al., 2012; Webb, 1994), which gave compound (2), and on their crystal structures.The molecular structures of compounds (1) and (2), Figs. 1 and 2, respectively, show a slight dissimilarity in the thiazine ring conformation. In (1), the ring pucker is twisted on the S1—C1 bond, while in (2) the ring has an
with atom S1 as the flap. The structures also differ in the disposition of the chlorophenyl ring at atom C1. In (1), this ring points in the same direction as the S atom with respect to the thiazolidine ring plane, while in (2), the S atom points in the opposite direction. The trans relationship between the oxygen on the S atom and the aromatic ring on C1 is favoured due to which would occur in the cis isomer. The two chlorophenyl rings are almost orthogonal to each other, making a dihedral angle of 78.61 (6)° in (1) and 87.46 (8)° in (2).Comparison of the two structures shows that the oxygen–sulfur bond formed on the less hindered side of compound (1), away from the aryl group on C1, leads to a trans stereoisomer.
was further relieved by the sulfur atom moving from being on the same side as the aryl ring to being on the opposite side of the central ring, and by the aryl ring moving from a pseudo-equatorial position in (1) to a pseudo-axial position in (2).In the crystal of (1), molecules are linked via C—H···O hydrogen bonds, forming chains along [100]; see Table 1 and Fig. 3. The chains are linked via slipped parallel π–π interactions involving inversion-related chlorophenyl rings, leading to the formation of sheets parallel to (001) [Cg3···Cg3i = 3.840 (3) Å; Cg3 is the centroid of the C8–C13 ring; inter-planar distance = 3.3364 (7) Å; slippage = 1.901 Å; symmetry code: (i) -x + 2, -y, -z + 2].
In the crystal of (2), molecules are linked via by C—H···O and C—H···Cl hydrogen bonds, forming slabs parallel to (001); see Table 2 and Fig. 4.
Compound (1) differs from the previously reported 2,3-diphenyl-1, 3-thiazolidin-4-one (Yennawar et al., 2014) only in the presence of p-chlorines on the two phenyl rings, and the compound does not have a twist in the thiazine ring. Compound (2) is related to 2-aryl-1,3-thiazolidin-4-one 1-oxides, viz. 3-butyl-2-phenyl-1,3-thiazolidine-1,4-dione (Wang et al., 2010), (1b, 2a, 5a)-3, 5-dimethyl-1-oxo-2-phenyl-4-thiazolidinone (Johnson et al., 1983), 2-(2, 6-dichlorophenyl)-3-(4, 5, 6-trimethylpyrimidin-2-yl)-1, 3-thiazolidin-4-one 1-oxide (Chen et al., 2011) and trans-3-benzyl-2-(4-methoxyphenyl)thiazolidin-4-one 1-oxide (Colombo et al., 2008). All five compounds have a trans relationship between the oxygen on sulfur and the 2-aryl ring.
Compound (1): prepared as previously reported (Tierney et al., 2005). Colourless block-like crystals were obtained by slow evaporation of a solution in ethanol.
Compound (2): 2,3-bis (4-chlorophenyl)-1,3-thiazolidin-4-one (1) (0.326 g, 1 mmol) was added to a 25 ml round-bottom flask. Methanol (4 ml) was added and the mixture was stirred at room temperature before cooling to 273–278 K. A solution of oxone (0.456 g, 3.0 mmol calculated as KHSO5, 152.2 g mol-1) in distilled water (4 ml) was prepared. This solution (2.67 ml, 2 equivalents) was slowly added to the reaction mixture with stirring at 273–278 K. The reaction was followed by TLC. An additional
of oxone solution (0.67 ml) was added to convert the remaining starting material to sulfoxide. The mixture was extracted three times with methylene chloride. The organic layers were combined and washed with water and saturated NaCl, then dried over sodium sulfate. The solution was concentrated under vacuum to give compound (2) as a crude solid. The solid was recrystallized from a mixture of methylene chloride and hexane, and then dried (yield: 0.2413 g; 70.5%; m.p.: 406–409 K). Colourless plate-like crystals were obtained by slow evaporation of a solution in ethanol.For both compounds, data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. A view of the molecular structure of compound (1), with atom labelling. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. A view of the molecular structure of compound (2), with atom labelling. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 3. Crystal packing of compound (1) viewed along the a axis, showing the hydrogen bonds as dashed lines (see Table 1 for details; H atoms not involved in these interactions have been omitted for clarity). | |
Fig. 4. Crystal packing of compound (2) viewed along the b axis, showing the hydrogen bonds as dashed lines (see Table 2 for details; H atoms not involved in these interactions have been omitted for clarity). |
C15H11Cl2NOS | Z = 2 |
Mr = 324.21 | F(000) = 332 |
Triclinic, P1 | Dx = 1.529 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.019 (6) Å | Cell parameters from 4305 reflections |
b = 9.562 (8) Å | θ = 2.3–28.2° |
c = 9.984 (8) Å | µ = 0.60 mm−1 |
α = 88.937 (13)° | T = 298 K |
β = 76.254 (12)° | Block, colourless |
γ = 71.586 (13)° | 0.22 × 0.20 × 0.16 mm |
V = 704.3 (10) Å3 |
Bruker SMART CCD area-detector diffractometer | 3406 independent reflections |
Radiation source: fine-focus sealed tube | 3070 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.016 |
Detector resolution: 8.34 pixels mm-1 | θmax = 28.3°, θmin = 2.1° |
phi and ω scans | h = −10→10 |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | k = −12→12 |
Tmin = 0.879, Tmax = 0.910 | l = −13→13 |
6575 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.099 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0523P)2 + 0.2029P] where P = (Fo2 + 2Fc2)/3 |
3406 reflections | (Δ/σ)max = 0.001 |
181 parameters | Δρmax = 0.24 e Å−3 |
0 restraints | Δρmin = −0.42 e Å−3 |
C15H11Cl2NOS | γ = 71.586 (13)° |
Mr = 324.21 | V = 704.3 (10) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.019 (6) Å | Mo Kα radiation |
b = 9.562 (8) Å | µ = 0.60 mm−1 |
c = 9.984 (8) Å | T = 298 K |
α = 88.937 (13)° | 0.22 × 0.20 × 0.16 mm |
β = 76.254 (12)° |
Bruker SMART CCD area-detector diffractometer | 3406 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 3070 reflections with I > 2σ(I) |
Tmin = 0.879, Tmax = 0.910 | Rint = 0.016 |
6575 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.099 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.24 e Å−3 |
3406 reflections | Δρmin = −0.42 e Å−3 |
181 parameters |
Experimental. The data collection nominally covered a full sphere of reciprocal space by a combination of 4 sets of ω scans each set at different ϕ and/or 2θ angles and each scan (10 s exposure) covering -0.300° degrees in ω. The crystal to detector distance was 5.82 cm. |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.48888 (17) | 0.30999 (15) | 0.71043 (13) | 0.0330 (3) | |
H1 | 0.4491 | 0.2300 | 0.6838 | 0.040* | |
C2 | 0.68202 (17) | 0.28648 (14) | 0.63246 (13) | 0.0310 (3) | |
C3 | 0.78163 (19) | 0.36815 (16) | 0.66932 (14) | 0.0356 (3) | |
H3 | 0.7306 | 0.4355 | 0.7455 | 0.043* | |
C4 | 0.95613 (19) | 0.34994 (16) | 0.59348 (14) | 0.0375 (3) | |
H4 | 1.0233 | 0.4040 | 0.6184 | 0.045* | |
C5 | 1.02943 (19) | 0.24998 (16) | 0.47982 (15) | 0.0391 (3) | |
C6 | 0.9333 (2) | 0.16883 (17) | 0.44035 (15) | 0.0418 (3) | |
H6 | 0.9841 | 0.1029 | 0.3631 | 0.050* | |
C7 | 0.7584 (2) | 0.18715 (16) | 0.51810 (14) | 0.0377 (3) | |
H7 | 0.6920 | 0.1323 | 0.4932 | 0.045* | |
C8 | 0.56811 (17) | 0.21103 (15) | 0.93089 (13) | 0.0317 (3) | |
C9 | 0.64973 (19) | 0.06770 (15) | 0.87310 (14) | 0.0366 (3) | |
H9 | 0.6364 | 0.0441 | 0.7872 | 0.044* | |
C10 | 0.7510 (2) | −0.04056 (17) | 0.94240 (16) | 0.0422 (3) | |
H10 | 0.8060 | −0.1366 | 0.9034 | 0.051* | |
C11 | 0.7694 (2) | −0.00403 (18) | 1.07003 (17) | 0.0434 (3) | |
C12 | 0.6911 (2) | 0.13821 (19) | 1.12805 (16) | 0.0457 (3) | |
H12 | 0.7053 | 0.1614 | 1.2139 | 0.055* | |
C13 | 0.5915 (2) | 0.24636 (17) | 1.05824 (15) | 0.0395 (3) | |
H13 | 0.5401 | 0.3429 | 1.0964 | 0.047* | |
C14 | 0.29560 (18) | 0.41916 (16) | 0.93219 (15) | 0.0364 (3) | |
C15 | 0.19141 (19) | 0.51206 (17) | 0.83648 (16) | 0.0429 (3) | |
H15A | 0.1473 | 0.6153 | 0.8689 | 0.051* | |
H15B | 0.0884 | 0.4811 | 0.8329 | 0.051* | |
Cl1 | 1.25015 (6) | 0.22688 (6) | 0.38612 (5) | 0.06617 (16) | |
Cl2 | 0.89079 (7) | −0.14012 (6) | 1.16121 (6) | 0.06647 (16) | |
N1 | 0.45860 (15) | 0.32152 (13) | 0.86178 (11) | 0.0322 (2) | |
O1 | 0.23825 (15) | 0.42928 (15) | 1.05662 (11) | 0.0510 (3) | |
S1 | 0.34401 (5) | 0.48672 (5) | 0.66875 (4) | 0.04576 (12) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0324 (6) | 0.0375 (7) | 0.0286 (6) | −0.0104 (5) | −0.0075 (5) | 0.0019 (5) |
C2 | 0.0327 (6) | 0.0329 (6) | 0.0252 (5) | −0.0080 (5) | −0.0064 (5) | 0.0040 (5) |
C3 | 0.0379 (7) | 0.0386 (7) | 0.0279 (6) | −0.0109 (5) | −0.0051 (5) | −0.0032 (5) |
C4 | 0.0380 (7) | 0.0413 (7) | 0.0344 (7) | −0.0147 (6) | −0.0084 (5) | 0.0018 (6) |
C5 | 0.0354 (7) | 0.0393 (7) | 0.0352 (7) | −0.0084 (6) | 0.0004 (5) | 0.0025 (6) |
C6 | 0.0465 (8) | 0.0391 (7) | 0.0328 (7) | −0.0108 (6) | 0.0004 (6) | −0.0052 (6) |
C7 | 0.0439 (7) | 0.0372 (7) | 0.0322 (6) | −0.0145 (6) | −0.0072 (6) | −0.0016 (5) |
C8 | 0.0288 (6) | 0.0361 (6) | 0.0297 (6) | −0.0121 (5) | −0.0044 (5) | 0.0056 (5) |
C9 | 0.0371 (7) | 0.0375 (7) | 0.0333 (6) | −0.0120 (6) | −0.0053 (5) | 0.0035 (5) |
C10 | 0.0378 (7) | 0.0370 (7) | 0.0476 (8) | −0.0105 (6) | −0.0053 (6) | 0.0093 (6) |
C11 | 0.0367 (7) | 0.0487 (8) | 0.0499 (8) | −0.0184 (6) | −0.0153 (6) | 0.0224 (7) |
C12 | 0.0485 (8) | 0.0583 (9) | 0.0392 (7) | −0.0240 (7) | −0.0185 (6) | 0.0127 (7) |
C13 | 0.0413 (7) | 0.0427 (7) | 0.0368 (7) | −0.0155 (6) | −0.0110 (6) | 0.0022 (6) |
C14 | 0.0303 (6) | 0.0402 (7) | 0.0372 (7) | −0.0107 (5) | −0.0056 (5) | −0.0027 (5) |
C15 | 0.0308 (6) | 0.0451 (8) | 0.0473 (8) | −0.0053 (6) | −0.0085 (6) | 0.0014 (6) |
Cl1 | 0.0465 (2) | 0.0702 (3) | 0.0689 (3) | −0.0232 (2) | 0.0179 (2) | −0.0170 (2) |
Cl2 | 0.0627 (3) | 0.0667 (3) | 0.0827 (3) | −0.0258 (2) | −0.0377 (3) | 0.0424 (3) |
N1 | 0.0307 (5) | 0.0357 (5) | 0.0269 (5) | −0.0076 (4) | −0.0050 (4) | 0.0013 (4) |
O1 | 0.0377 (5) | 0.0675 (8) | 0.0360 (5) | −0.0062 (5) | −0.0002 (4) | −0.0081 (5) |
S1 | 0.0374 (2) | 0.0520 (2) | 0.0426 (2) | −0.00607 (16) | −0.01206 (16) | 0.01364 (17) |
C1—N1 | 1.473 (2) | C8—N1 | 1.4277 (18) |
C1—C2 | 1.506 (2) | C9—C10 | 1.386 (2) |
C1—S1 | 1.8282 (17) | C9—H9 | 0.9300 |
C1—H1 | 0.9800 | C10—C11 | 1.380 (3) |
C2—C7 | 1.386 (2) | C10—H10 | 0.9300 |
C2—C3 | 1.388 (2) | C11—C12 | 1.377 (3) |
C3—C4 | 1.382 (2) | C11—Cl2 | 1.7455 (17) |
C3—H3 | 0.9300 | C12—C13 | 1.382 (2) |
C4—C5 | 1.384 (2) | C12—H12 | 0.9300 |
C4—H4 | 0.9300 | C13—H13 | 0.9300 |
C5—C6 | 1.373 (2) | C14—O1 | 1.212 (2) |
C5—Cl1 | 1.7408 (19) | C14—N1 | 1.3751 (19) |
C6—C7 | 1.390 (2) | C14—C15 | 1.510 (2) |
C6—H6 | 0.9300 | C15—S1 | 1.7930 (19) |
C7—H7 | 0.9300 | C15—H15A | 0.9700 |
C8—C9 | 1.387 (2) | C15—H15B | 0.9700 |
C8—C13 | 1.391 (2) | ||
N1—C1—C2 | 114.30 (11) | C10—C9—H9 | 119.8 |
N1—C1—S1 | 104.57 (9) | C8—C9—H9 | 119.8 |
C2—C1—S1 | 109.22 (10) | C11—C10—C9 | 119.14 (15) |
N1—C1—H1 | 109.5 | C11—C10—H10 | 120.4 |
C2—C1—H1 | 109.5 | C9—C10—H10 | 120.4 |
S1—C1—H1 | 109.5 | C12—C11—C10 | 121.07 (14) |
C7—C2—C3 | 119.49 (13) | C12—C11—Cl2 | 119.13 (13) |
C7—C2—C1 | 119.49 (12) | C10—C11—Cl2 | 119.80 (13) |
C3—C2—C1 | 120.94 (12) | C11—C12—C13 | 119.72 (15) |
C4—C3—C2 | 120.40 (13) | C11—C12—H12 | 120.1 |
C4—C3—H3 | 119.8 | C13—C12—H12 | 120.1 |
C2—C3—H3 | 119.8 | C12—C13—C8 | 120.07 (15) |
C3—C4—C5 | 119.01 (13) | C12—C13—H13 | 120.0 |
C3—C4—H4 | 120.5 | C8—C13—H13 | 120.0 |
C5—C4—H4 | 120.5 | O1—C14—N1 | 124.72 (14) |
C6—C5—C4 | 121.77 (14) | O1—C14—C15 | 122.94 (13) |
C6—C5—Cl1 | 119.69 (12) | N1—C14—C15 | 112.33 (13) |
C4—C5—Cl1 | 118.54 (12) | C14—C15—S1 | 107.22 (11) |
C5—C6—C7 | 118.72 (14) | C14—C15—H15A | 110.3 |
C5—C6—H6 | 120.6 | S1—C15—H15A | 110.3 |
C7—C6—H6 | 120.6 | C14—C15—H15B | 110.3 |
C2—C7—C6 | 120.60 (13) | S1—C15—H15B | 110.3 |
C2—C7—H7 | 119.7 | H15A—C15—H15B | 108.5 |
C6—C7—H7 | 119.7 | C14—N1—C8 | 121.42 (12) |
C9—C8—C13 | 119.47 (13) | C14—N1—C1 | 115.85 (11) |
C9—C8—N1 | 120.56 (13) | C8—N1—C1 | 120.65 (11) |
C13—C8—N1 | 119.96 (13) | C15—S1—C1 | 91.77 (7) |
C10—C9—C8 | 120.50 (14) | ||
N1—C1—C2—C7 | 138.56 (13) | C11—C12—C13—C8 | 1.0 (2) |
S1—C1—C2—C7 | −104.71 (14) | C9—C8—C13—C12 | −1.8 (2) |
N1—C1—C2—C3 | −44.66 (17) | N1—C8—C13—C12 | 177.27 (13) |
S1—C1—C2—C3 | 72.06 (15) | O1—C14—C15—S1 | 168.76 (13) |
C7—C2—C3—C4 | −0.5 (2) | N1—C14—C15—S1 | −12.48 (15) |
C1—C2—C3—C4 | −177.31 (13) | O1—C14—N1—C8 | 6.5 (2) |
C2—C3—C4—C5 | 0.5 (2) | C15—C14—N1—C8 | −172.19 (12) |
C3—C4—C5—C6 | 0.1 (2) | O1—C14—N1—C1 | 170.20 (14) |
C3—C4—C5—Cl1 | −179.42 (11) | C15—C14—N1—C1 | −8.53 (17) |
C4—C5—C6—C7 | −0.7 (2) | C9—C8—N1—C14 | 136.45 (14) |
Cl1—C5—C6—C7 | 178.88 (12) | C13—C8—N1—C14 | −42.65 (18) |
C3—C2—C7—C6 | 0.0 (2) | C9—C8—N1—C1 | −26.44 (18) |
C1—C2—C7—C6 | 176.81 (13) | C13—C8—N1—C1 | 154.46 (13) |
C5—C6—C7—C2 | 0.6 (2) | C2—C1—N1—C14 | 144.10 (13) |
C13—C8—C9—C10 | 1.3 (2) | S1—C1—N1—C14 | 24.72 (14) |
N1—C8—C9—C10 | −177.86 (12) | C2—C1—N1—C8 | −52.09 (16) |
C8—C9—C10—C11 | 0.2 (2) | S1—C1—N1—C8 | −171.47 (9) |
C9—C10—C11—C12 | −1.0 (2) | C14—C15—S1—C1 | 22.62 (11) |
C9—C10—C11—Cl2 | 178.08 (11) | N1—C1—S1—C15 | −26.42 (10) |
C10—C11—C12—C13 | 0.4 (2) | C2—C1—S1—C15 | −149.16 (10) |
Cl2—C11—C12—C13 | −178.68 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O1i | 0.93 | 2.48 | 3.326 (3) | 151 |
C15—H15B···O1ii | 0.97 | 2.46 | 3.221 (3) | 135 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x, −y+1, −z+2. |
C15H11Cl2NO2S | F(000) = 1392 |
Mr = 340.21 | Dx = 1.450 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ab 2ac | Cell parameters from 5771 reflections |
a = 7.1094 (17) Å | θ = 2.2–28.2° |
b = 20.940 (5) Å | µ = 0.55 mm−1 |
c = 20.940 Å | T = 298 K |
V = 3117.4 (11) Å3 | Plate, colourless |
Z = 8 | 0.19 × 0.17 × 0.05 mm |
Bruker SMART CCD area-detector diffractometer | 3862 independent reflections |
Radiation source: fine-focus sealed tube | 2543 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
Detector resolution: 8.34 pixels mm-1 | θmax = 28.3°, θmin = 2.0° |
phi and ω scans | h = −9→9 |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | k = −27→27 |
Tmin = 0.902, Tmax = 0.973 | l = −27→27 |
26788 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0581P)2 + 1.0427P] where P = (Fo2 + 2Fc2)/3 |
3862 reflections | (Δ/σ)max = 0.003 |
190 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C15H11Cl2NO2S | V = 3117.4 (11) Å3 |
Mr = 340.21 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 7.1094 (17) Å | µ = 0.55 mm−1 |
b = 20.940 (5) Å | T = 298 K |
c = 20.940 Å | 0.19 × 0.17 × 0.05 mm |
Bruker SMART CCD area-detector diffractometer | 3862 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2543 reflections with I > 2σ(I) |
Tmin = 0.902, Tmax = 0.973 | Rint = 0.038 |
26788 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.33 e Å−3 |
3862 reflections | Δρmin = −0.31 e Å−3 |
190 parameters |
Experimental. The data collection nominally covered a full sphere of reciprocal space by a combination of 4 sets of ω scans each set at different ϕ and/or 2θ angles and each scan (10 s exposure) covering -0.300° degrees in ω. The crystal to detector distance was 5.82 cm. |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.1427 (3) | 0.56601 (10) | 0.84451 (10) | 0.0447 (5) | |
H1 | 0.1817 | 0.5615 | 0.7999 | 0.054* | |
C2 | 0.2832 (3) | 0.60780 (10) | 0.87867 (10) | 0.0446 (5) | |
C3 | 0.3302 (3) | 0.59815 (12) | 0.94158 (11) | 0.0508 (6) | |
H3 | 0.2783 | 0.5640 | 0.9638 | 0.061* | |
C4 | 0.4542 (4) | 0.63897 (14) | 0.97198 (12) | 0.0627 (7) | |
H4 | 0.4843 | 0.6326 | 1.0147 | 0.075* | |
C5 | 0.5322 (4) | 0.68858 (14) | 0.93908 (15) | 0.0710 (8) | |
C6 | 0.4887 (4) | 0.69891 (13) | 0.87616 (16) | 0.0745 (8) | |
H6 | 0.5433 | 0.7327 | 0.8541 | 0.089* | |
C7 | 0.3629 (4) | 0.65874 (12) | 0.84583 (12) | 0.0594 (6) | |
H7 | 0.3316 | 0.6658 | 0.8033 | 0.071* | |
C8 | 0.2445 (3) | 0.45232 (11) | 0.85694 (9) | 0.0455 (5) | |
C9 | 0.4140 (3) | 0.46695 (12) | 0.82790 (12) | 0.0563 (6) | |
H9 | 0.4447 | 0.5094 | 0.8199 | 0.068* | |
C10 | 0.5379 (4) | 0.41909 (14) | 0.81076 (13) | 0.0684 (7) | |
H10 | 0.6511 | 0.4293 | 0.7910 | 0.082* | |
C11 | 0.4939 (5) | 0.35700 (14) | 0.82285 (13) | 0.0716 (8) | |
C12 | 0.3310 (5) | 0.34158 (14) | 0.85240 (14) | 0.0808 (9) | |
H12 | 0.3038 | 0.2990 | 0.8612 | 0.097* | |
C13 | 0.2046 (4) | 0.38873 (13) | 0.86954 (13) | 0.0677 (7) | |
H13 | 0.0925 | 0.3778 | 0.8896 | 0.081* | |
C14 | −0.0326 (3) | 0.49782 (12) | 0.91318 (10) | 0.0508 (6) | |
C15 | −0.1372 (3) | 0.56016 (13) | 0.91777 (10) | 0.0593 (7) | |
H15A | −0.0952 | 0.5839 | 0.9549 | 0.071* | |
H15B | −0.2711 | 0.5523 | 0.9219 | 0.071* | |
Cl1 | 0.68956 (15) | 0.73930 (6) | 0.97629 (6) | 0.1258 (4) | |
Cl2 | 0.64436 (17) | 0.29545 (5) | 0.79888 (5) | 0.1196 (4) | |
N1 | 0.1163 (2) | 0.50246 (9) | 0.87174 (8) | 0.0434 (4) | |
O1 | −0.2071 (3) | 0.57407 (11) | 0.79699 (8) | 0.0779 (6) | |
O2 | −0.0736 (3) | 0.45046 (9) | 0.94350 (8) | 0.0715 (5) | |
S1 | −0.09086 (9) | 0.60445 (3) | 0.84674 (3) | 0.0560 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0457 (12) | 0.0505 (13) | 0.0378 (10) | −0.0016 (10) | 0.0072 (9) | 0.0010 (9) |
C2 | 0.0398 (11) | 0.0484 (12) | 0.0456 (11) | 0.0011 (10) | 0.0086 (9) | −0.0022 (9) |
C3 | 0.0454 (13) | 0.0594 (15) | 0.0475 (12) | −0.0024 (11) | 0.0063 (10) | −0.0046 (10) |
C4 | 0.0507 (14) | 0.0793 (19) | 0.0580 (14) | −0.0008 (13) | 0.0003 (12) | −0.0162 (13) |
C5 | 0.0479 (15) | 0.077 (2) | 0.089 (2) | −0.0116 (14) | 0.0071 (14) | −0.0282 (16) |
C6 | 0.0671 (18) | 0.0580 (17) | 0.099 (2) | −0.0187 (14) | 0.0212 (16) | −0.0015 (15) |
C7 | 0.0607 (15) | 0.0567 (15) | 0.0607 (14) | −0.0082 (12) | 0.0083 (12) | 0.0027 (12) |
C8 | 0.0469 (12) | 0.0508 (13) | 0.0387 (11) | −0.0038 (10) | 0.0008 (9) | −0.0001 (9) |
C9 | 0.0518 (14) | 0.0577 (15) | 0.0593 (14) | −0.0008 (11) | 0.0120 (11) | 0.0030 (11) |
C10 | 0.0566 (16) | 0.079 (2) | 0.0700 (17) | 0.0129 (14) | 0.0092 (13) | 0.0026 (14) |
C11 | 0.080 (2) | 0.0716 (19) | 0.0636 (16) | 0.0273 (16) | 0.0024 (15) | 0.0056 (14) |
C12 | 0.110 (3) | 0.0470 (15) | 0.085 (2) | 0.0075 (16) | 0.0129 (19) | 0.0078 (14) |
C13 | 0.0747 (19) | 0.0548 (16) | 0.0735 (17) | −0.0092 (14) | 0.0156 (14) | 0.0053 (13) |
C14 | 0.0445 (12) | 0.0728 (16) | 0.0352 (10) | −0.0074 (11) | 0.0039 (9) | 0.0008 (11) |
C15 | 0.0434 (13) | 0.0903 (19) | 0.0442 (12) | 0.0087 (13) | 0.0042 (10) | −0.0051 (12) |
Cl1 | 0.0974 (7) | 0.1391 (9) | 0.1409 (9) | −0.0599 (7) | −0.0018 (6) | −0.0500 (7) |
Cl2 | 0.1392 (9) | 0.1012 (7) | 0.1184 (8) | 0.0708 (7) | 0.0144 (7) | 0.0076 (6) |
N1 | 0.0405 (9) | 0.0512 (10) | 0.0387 (8) | −0.0037 (8) | 0.0068 (7) | 0.0014 (8) |
O1 | 0.0607 (12) | 0.1197 (16) | 0.0534 (10) | −0.0018 (11) | −0.0179 (9) | −0.0016 (10) |
O2 | 0.0764 (13) | 0.0803 (13) | 0.0579 (10) | −0.0134 (10) | 0.0236 (9) | 0.0120 (9) |
S1 | 0.0494 (4) | 0.0702 (4) | 0.0484 (3) | 0.0080 (3) | −0.0057 (3) | 0.0022 (3) |
C1—N1 | 1.460 (3) | C8—N1 | 1.425 (3) |
C1—C2 | 1.508 (3) | C9—C10 | 1.382 (4) |
C1—S1 | 1.846 (2) | C9—H9 | 0.9300 |
C1—H1 | 0.9800 | C10—C11 | 1.361 (4) |
C2—C3 | 1.374 (3) | C10—H10 | 0.9300 |
C2—C7 | 1.390 (3) | C11—C12 | 1.352 (4) |
C3—C4 | 1.383 (3) | C11—Cl2 | 1.749 (3) |
C3—H3 | 0.9300 | C12—C13 | 1.382 (4) |
C4—C5 | 1.365 (4) | C12—H12 | 0.9300 |
C4—H4 | 0.9300 | C13—H13 | 0.9300 |
C5—C6 | 1.371 (4) | C14—O2 | 1.213 (3) |
C5—Cl1 | 1.728 (3) | C14—N1 | 1.372 (3) |
C6—C7 | 1.382 (4) | C14—C15 | 1.506 (4) |
C6—H6 | 0.9300 | C15—S1 | 1.784 (2) |
C7—H7 | 0.9300 | C15—H15A | 0.9700 |
C8—C9 | 1.384 (3) | C15—H15B | 0.9700 |
C8—C13 | 1.387 (3) | O1—S1 | 1.4742 (19) |
N1—C1—C2 | 115.38 (18) | C8—C9—H9 | 119.7 |
N1—C1—S1 | 105.78 (14) | C11—C10—C9 | 119.9 (3) |
C2—C1—S1 | 109.30 (15) | C11—C10—H10 | 120.1 |
N1—C1—H1 | 108.7 | C9—C10—H10 | 120.1 |
C2—C1—H1 | 108.7 | C12—C11—C10 | 120.7 (3) |
S1—C1—H1 | 108.7 | C12—C11—Cl2 | 118.6 (2) |
C3—C2—C7 | 119.2 (2) | C10—C11—Cl2 | 120.7 (2) |
C3—C2—C1 | 122.0 (2) | C11—C12—C13 | 120.3 (3) |
C7—C2—C1 | 118.7 (2) | C11—C12—H12 | 119.8 |
C2—C3—C4 | 120.4 (2) | C13—C12—H12 | 119.8 |
C2—C3—H3 | 119.8 | C12—C13—C8 | 120.2 (3) |
C4—C3—H3 | 119.8 | C12—C13—H13 | 119.9 |
C5—C4—C3 | 119.8 (2) | C8—C13—H13 | 119.9 |
C5—C4—H4 | 120.1 | O2—C14—N1 | 125.1 (2) |
C3—C4—H4 | 120.1 | O2—C14—C15 | 123.8 (2) |
C4—C5—C6 | 120.9 (3) | N1—C14—C15 | 111.1 (2) |
C4—C5—Cl1 | 120.2 (2) | C14—C15—S1 | 107.83 (15) |
C6—C5—Cl1 | 118.9 (2) | C14—C15—H15A | 110.1 |
C5—C6—C7 | 119.5 (3) | S1—C15—H15A | 110.1 |
C5—C6—H6 | 120.3 | C14—C15—H15B | 110.1 |
C7—C6—H6 | 120.3 | S1—C15—H15B | 110.1 |
C6—C7—C2 | 120.2 (3) | H15A—C15—H15B | 108.5 |
C6—C7—H7 | 119.9 | C14—N1—C8 | 125.37 (19) |
C2—C7—H7 | 119.9 | C14—N1—C1 | 114.26 (19) |
C9—C8—C13 | 118.3 (2) | C8—N1—C1 | 120.31 (17) |
C9—C8—N1 | 119.3 (2) | O1—S1—C15 | 105.16 (13) |
C13—C8—N1 | 122.4 (2) | O1—S1—C1 | 107.35 (11) |
C10—C9—C8 | 120.6 (2) | C15—S1—C1 | 87.74 (10) |
C10—C9—H9 | 119.7 | ||
N1—C1—C2—C3 | −23.1 (3) | C9—C8—C13—C12 | −1.0 (4) |
S1—C1—C2—C3 | 96.0 (2) | N1—C8—C13—C12 | 177.9 (2) |
N1—C1—C2—C7 | 158.9 (2) | O2—C14—C15—S1 | −158.4 (2) |
S1—C1—C2—C7 | −82.1 (2) | N1—C14—C15—S1 | 23.1 (2) |
C7—C2—C3—C4 | 0.5 (3) | O2—C14—N1—C8 | 1.0 (4) |
C1—C2—C3—C4 | −177.5 (2) | C15—C14—N1—C8 | 179.50 (19) |
C2—C3—C4—C5 | −0.9 (4) | O2—C14—N1—C1 | −176.0 (2) |
C3—C4—C5—C6 | 0.4 (4) | C15—C14—N1—C1 | 2.4 (3) |
C3—C4—C5—Cl1 | −179.2 (2) | C9—C8—N1—C14 | −163.5 (2) |
C4—C5—C6—C7 | 0.5 (4) | C13—C8—N1—C14 | 17.7 (3) |
Cl1—C5—C6—C7 | −179.9 (2) | C9—C8—N1—C1 | 13.4 (3) |
C5—C6—C7—C2 | −0.8 (4) | C13—C8—N1—C1 | −165.4 (2) |
C3—C2—C7—C6 | 0.3 (4) | C2—C1—N1—C14 | 95.3 (2) |
C1—C2—C7—C6 | 178.4 (2) | S1—C1—N1—C14 | −25.7 (2) |
C13—C8—C9—C10 | 1.4 (4) | C2—C1—N1—C8 | −82.0 (2) |
N1—C8—C9—C10 | −177.5 (2) | S1—C1—N1—C8 | 157.09 (15) |
C8—C9—C10—C11 | −0.4 (4) | C14—C15—S1—O1 | 76.00 (19) |
C9—C10—C11—C12 | −1.0 (5) | C14—C15—S1—C1 | −31.37 (17) |
C9—C10—C11—Cl2 | 177.6 (2) | N1—C1—S1—O1 | −72.87 (16) |
C10—C11—C12—C13 | 1.4 (5) | C2—C1—S1—O1 | 162.31 (15) |
Cl2—C11—C12—C13 | −177.2 (2) | N1—C1—S1—C15 | 32.31 (16) |
C11—C12—C13—C8 | −0.4 (5) | C2—C1—S1—C15 | −92.52 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.98 | 2.19 | 3.154 (3) | 167 |
C6—H6···Cl2ii | 0.93 | 2.83 | 3.676 (3) | 152 |
Symmetry codes: (i) x+1/2, y, −z+3/2; (ii) −x+3/2, y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O1i | 0.93 | 2.48 | 3.326 (3) | 151 |
C15—H15B···O1ii | 0.97 | 2.46 | 3.221 (3) | 135 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.98 | 2.19 | 3.154 (3) | 167 |
C6—H6···Cl2ii | 0.93 | 2.83 | 3.676 (3) | 152 |
Symmetry codes: (i) x+1/2, y, −z+3/2; (ii) −x+3/2, y+1/2, z. |
Experimental details
(1) | (2) | |
Crystal data | ||
Chemical formula | C15H11Cl2NOS | C15H11Cl2NO2S |
Mr | 324.21 | 340.21 |
Crystal system, space group | Triclinic, P1 | Orthorhombic, Pbca |
Temperature (K) | 298 | 298 |
a, b, c (Å) | 8.019 (6), 9.562 (8), 9.984 (8) | 7.1094 (17), 20.940 (5), 20.940 |
α, β, γ (°) | 88.937 (13), 76.254 (12), 71.586 (13) | 90, 90, 90 |
V (Å3) | 704.3 (10) | 3117.4 (11) |
Z | 2 | 8 |
Radiation type | Mo Kα | Mo Kα |
µ (mm−1) | 0.60 | 0.55 |
Crystal size (mm) | 0.22 × 0.20 × 0.16 | 0.19 × 0.17 × 0.05 |
Data collection | ||
Diffractometer | Bruker SMART CCD area-detector diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.879, 0.910 | 0.902, 0.973 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6575, 3406, 3070 | 26788, 3862, 2543 |
Rint | 0.016 | 0.038 |
(sin θ/λ)max (Å−1) | 0.666 | 0.666 |
Refinement | ||
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.099, 1.05 | 0.051, 0.138, 1.07 |
No. of reflections | 3406 | 3862 |
No. of parameters | 181 | 190 |
H-atom treatment | H-atom parameters constrained | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.42 | 0.33, −0.31 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Acknowledgements
We acknowledge NSF funding (CHEM-0131112) for the X-ray diffractometer.
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