metal-organic compounds
Bis(propane-1,3-diamine)disaccharinatonickel(II)
aOndokuz Mayıs University, Faculty of Arts and Sciences, Department of Physics, 55139 Kurupelit Samsun, Turkey
*Correspondence e-mail: gkastas@omu.edu.tr
In the title complex, [Ni(C7H4NO3S)2(C3H10N2)2] or [Ni(sac)2(pen)2] (sac = saccharinate or 1,1,3-trioxo-2,3-dihydro-1λ6,2-benzothiazol-2-ide and pen = propane-1,3-diamine), the NiII ion sits on an inversion center, being coordinated by two N atoms of the sac ligands, which occupy trans positions, and four N atoms of the bidentate pen ligands to define a distorted octahedral geometry. The pen ligands chelate the metal ion, forming a six-membered ring which adopts a half-chair conformation, while the sac ligands adopt the most common coordination mode. The crystal packing is stabilized by N—H⋯O hydrogen bonds, which form a one-dimensional network along [010]. It is also supported by an N—H⋯S hydrogen bond between the amine group of the pen ligand and the sulfonyl group of the sac ligand.
Related literature
For background to saccharin and the use of the saccharinato anion (sac), as a polyfunctional ligand, see: Baran & Yilmaz (2006); Heren et al. (2008); Paşaoğlu et al. (2007). For hydrogen-bond motifs, see: Bernstein et al. (1995). For a related structure, see: Bulut et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536812010525/ds2179sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812010525/ds2179Isup2.hkl
An aquous solution of pen (2.54 mmol, 0.19 g) was added dropwise with stirring to a solution of [Ni(sac)2(H2O)4].2H2O (1.27 mmol, 1.00 g). The mixture was heated to 343 K in a temperature-controlled bath and stirred for 3 h. The green reaction mixture was filtered and left for crystallization in room temperature. After two weeks, the violet crystals of the title complex were selected for X-ray experiment. IR (KBr, ν cm-1), stretching vibrations: 3326–3290 (NH2), 3153–3060 (CH)ring, 2948–2881 (CH2) 1658 (C=O), 1575 (C=C)sac 1406 (C=N)pen, 1325 (CNS)sym, 1269 (SO2)asym 1141 (SO2)sym, 950 (CNS)asym.
All H atoms except those involved in H-bonds were positioned geometrically and treated using a riding model, with the distances of 0.970 and 0.930 Å for methylene and aromatic groups, respectively. The displacement parameters of the H atoms were constrained with Uiso(H) = 1.2Ueq for parent atoms.
Saccharin (3H-benzisothiazol-3-one 1,1-dioxide or o-benzosulfimide) is a well known artificial sweetener. It is readily deprotonated to form saccharinato anion (sac), which is a versatile polyfunctional ligand (Baran & Yilmaz, 2006). Because of the biological significance of saccharin, there has been increased interest in its metal complexes, especially with first-row transition metals (Paşaoğlu et al., 2007; Heren et al., 2008. Saccharin, or its anion, may bond to metals by means of their imino nitrogen, carbonyl oxygen, or sulfonyl oxygen atoms. In the last two decades, the metal saccharinates and metal complexes including saccharin and various N-donor ligands (mono- or bidentate) have been intensively studied by many investigators. In the present study, the mixed-ligand NiII complex of saccharinate with pen (Scheme) is investigated.
In the title compound, NiII ion sits on an inversion center, being coordinated by two N atoms of sac ligand and four N atoms of bidentate pen ligands in trans positions. The bond distances and angles (Table 1) show that the
of the NiII ion is a distorted octahedron. The equatorial plane of the octahedron is defined by the N atoms of pen ligands, whereas the axial positions are occupied by the N atoms of the sac ligands (Fig. 1). It is seen that the pen ligands chelate the metal ion to form a six-membered ring adopting a half-chair conformation while sac ligands prefer the most common coordination mode. The intra-ligand bond lengths and angles of the sac ligand are similar to those observed in previous studies (Paşaoğlu et al., 2007; Heren et al., 2008). The sac ligand is planar, with an r.m.s deviation of 0.022 Å. The dihedral angle between the equatorial plane and the mean plane of sac was measured as 84.50 (7)°. It is seen in Table 1 that the Ni—Npen bond distances span the range 2.094 (3)–2.119 (3) Å, being shorter than Ni-Nsac distance (2.262 (2) Å) which is comparable to that observed in [Ni(C7H4NO3S)(C5H9N3)2] (2.2874 (19) Å) (Bulut et al., 2007). The crystal packing of the complex is mainly stabilized by hydrogen bonds of N—H···O type (Table 2). Multiple H-bond donor and acceptor behaviors of amine and sulfonyl groups enable a variety of chain and ring systems in the crystal packing. For example, the inter-molecular N2—H2B···O3iii (iii: -x, -1 - y, 1 - z) hydrogen bonds form centrosymmetric R22(12) (Bernstein et al., 1995) rings located at (0, 1/2+n, 1/2: n=0 or integer) positions to form one-dimensional hyrogen bonding network along [010] (Fig. 2). On the other hand, the same ring motifs are also formed by N3—H3B···O2i (i:-x, -y, 1 - z) hydrogen bonds (Fig. 3).For background to saccharin and the use of the saccharinato anion (sac), as a polyfunctional ligand, see: Baran & Yilmaz (2006); Heren et al. (2008); Paşaoğlu et al. (2007). For hydrogen-bond motifs, see: Bernstein et al. (1995). For a related structure, see: Bulut et al. (2007).
Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. A molecular view of the complex, showing the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. H atoms not involved in hydrogen bonding were omitted for clarity. | |
Fig. 2. The centrosymmetric R22(12) rings connecting the discrete molecules along [010]. Benzene rings and some H atoms were omitted for clarity. | |
Fig. 3. The formation of centrosymmetric R22(12) rings. Benzene rings and some H atoms were omitted for clarity. |
[Ni(C7H4NO3S)2(C3H10N2)2] | F(000) = 596 |
Mr = 571.31 | Dx = 1.599 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71069 Å |
Hall symbol: -P 2yn | Cell parameters from 27512 reflections |
a = 11.447 (5) Å | θ = 1.9–28.1° |
b = 7.209 (6) Å | µ = 1.04 mm−1 |
c = 15.236 (5) Å | T = 296 K |
β = 109.313 (5)° | Prism, violet |
V = 1186.5 (12) Å3 | 0.52 × 0.35 × 0.15 mm |
Z = 2 |
Stoe IPDS 2 diffractometer | 2590 independent reflections |
Radiation source: fine-focus sealed tube | 2334 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.045 |
rotation method scans | θmax = 27.0°, θmin = 2.0° |
Absorption correction: integration (X-RED; Stoe & Cie, 2002) | h = −14→14 |
Tmin = 0.673, Tmax = 0.873 | k = −9→9 |
18160 measured reflections | l = −19→19 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.101 | w = 1/[σ2(Fo2) + (0.0792P)2 + 0.9405P] where P = (Fo2 + 2Fc2)/3 |
S = 0.83 | (Δ/σ)max = 0.001 |
2590 reflections | Δρmax = 0.74 e Å−3 |
177 parameters | Δρmin = −0.37 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0040 (12) |
[Ni(C7H4NO3S)2(C3H10N2)2] | V = 1186.5 (12) Å3 |
Mr = 571.31 | Z = 2 |
Monoclinic, P21/n | Mo Kα radiation |
a = 11.447 (5) Å | µ = 1.04 mm−1 |
b = 7.209 (6) Å | T = 296 K |
c = 15.236 (5) Å | 0.52 × 0.35 × 0.15 mm |
β = 109.313 (5)° |
Stoe IPDS 2 diffractometer | 2590 independent reflections |
Absorption correction: integration (X-RED; Stoe & Cie, 2002) | 2334 reflections with I > 2σ(I) |
Tmin = 0.673, Tmax = 0.873 | Rint = 0.045 |
18160 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 0 restraints |
wR(F2) = 0.101 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.83 | Δρmax = 0.74 e Å−3 |
2590 reflections | Δρmin = −0.37 e Å−3 |
177 parameters |
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 | ||
Ni1 | 0.0000 | 0.0000 | 0.5000 | 0.03195 (14) | |
S1 | −0.09614 (5) | −0.33212 (7) | 0.62118 (4) | 0.03795 (16) | |
O3 | −0.00193 (18) | −0.4563 (2) | 0.61249 (13) | 0.0506 (4) | |
N1 | −0.05429 (17) | −0.1179 (2) | 0.61849 (12) | 0.0384 (4) | |
O2 | −0.21766 (18) | −0.3644 (3) | 0.55571 (12) | 0.0567 (5) | |
N3 | 0.1349 (2) | 0.1650 (3) | 0.59749 (14) | 0.0408 (4) | |
C2 | −0.0733 (2) | −0.1541 (3) | 0.76883 (15) | 0.0409 (5) | |
O1 | −0.02673 (19) | 0.1378 (2) | 0.71301 (14) | 0.0585 (5) | |
C7 | −0.10157 (19) | −0.3318 (3) | 0.73503 (15) | 0.0378 (4) | |
C1 | −0.0490 (2) | −0.0281 (3) | 0.69877 (17) | 0.0414 (5) | |
N2 | 0.12960 (19) | −0.2097 (3) | 0.50843 (14) | 0.0416 (4) | |
C6 | −0.1277 (2) | −0.4744 (4) | 0.78602 (17) | 0.0459 (5) | |
H6 | −0.1467 | −0.5931 | 0.7616 | 0.055* | |
C5 | −0.1241 (3) | −0.4313 (5) | 0.87586 (19) | 0.0578 (7) | |
H5 | −0.1404 | −0.5231 | 0.9131 | 0.069* | |
C3 | −0.0707 (3) | −0.1121 (4) | 0.85797 (18) | 0.0566 (6) | |
H3 | −0.0522 | 0.0071 | 0.8819 | 0.068* | |
C9 | 0.3068 (2) | −0.0680 (5) | 0.6283 (2) | 0.0633 (7) | |
H9A | 0.3305 | −0.0113 | 0.5790 | 0.076* | |
H9B | 0.3824 | −0.1027 | 0.6773 | 0.076* | |
C8 | 0.2373 (2) | −0.2388 (4) | 0.59136 (17) | 0.0527 (6) | |
H8A | 0.2924 | −0.3264 | 0.5767 | 0.063* | |
H8B | 0.2100 | −0.2939 | 0.6394 | 0.063* | |
C4 | −0.0965 (3) | −0.2530 (5) | 0.91060 (19) | 0.0641 (8) | |
H4 | −0.0952 | −0.2274 | 0.9707 | 0.077* | |
C10 | 0.2423 (2) | 0.0754 (5) | 0.66625 (18) | 0.0614 (7) | |
H10A | 0.2148 | 0.0179 | 0.7136 | 0.074* | |
H10B | 0.3018 | 0.1708 | 0.6964 | 0.074* | |
H3A | 0.098 (3) | 0.220 (4) | 0.623 (2) | 0.045 (7)* | |
H3B | 0.168 (3) | 0.238 (5) | 0.569 (2) | 0.079 (11)* | |
H2A | 0.157 (3) | −0.179 (5) | 0.461 (2) | 0.068 (9)* | |
H2B | 0.091 (3) | −0.306 (5) | 0.498 (2) | 0.071 (10)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.0364 (2) | 0.0281 (2) | 0.0298 (2) | −0.00006 (13) | 0.00887 (14) | −0.00239 (12) |
S1 | 0.0495 (3) | 0.0318 (3) | 0.0353 (3) | −0.0060 (2) | 0.0177 (2) | −0.00277 (19) |
O3 | 0.0724 (12) | 0.0318 (8) | 0.0610 (11) | −0.0004 (8) | 0.0399 (9) | −0.0036 (7) |
N1 | 0.0512 (10) | 0.0299 (8) | 0.0373 (9) | −0.0036 (7) | 0.0189 (8) | −0.0019 (7) |
O2 | 0.0613 (10) | 0.0609 (11) | 0.0423 (9) | −0.0209 (9) | 0.0098 (8) | −0.0012 (8) |
N3 | 0.0475 (10) | 0.0392 (10) | 0.0351 (9) | −0.0075 (8) | 0.0125 (8) | −0.0044 (8) |
C2 | 0.0426 (11) | 0.0438 (12) | 0.0393 (11) | −0.0010 (9) | 0.0176 (9) | −0.0056 (9) |
O1 | 0.0853 (13) | 0.0364 (9) | 0.0662 (12) | −0.0125 (9) | 0.0419 (11) | −0.0154 (8) |
C7 | 0.0375 (10) | 0.0408 (11) | 0.0371 (10) | 0.0010 (8) | 0.0152 (8) | −0.0012 (8) |
C1 | 0.0471 (11) | 0.0362 (11) | 0.0448 (12) | −0.0018 (9) | 0.0204 (10) | −0.0074 (9) |
N2 | 0.0458 (10) | 0.0352 (10) | 0.0430 (10) | 0.0030 (8) | 0.0138 (8) | −0.0004 (8) |
C6 | 0.0488 (12) | 0.0479 (13) | 0.0453 (12) | 0.0005 (10) | 0.0214 (10) | 0.0061 (10) |
C5 | 0.0595 (15) | 0.0734 (18) | 0.0474 (13) | −0.0001 (13) | 0.0270 (12) | 0.0104 (13) |
C3 | 0.0673 (16) | 0.0627 (16) | 0.0461 (13) | −0.0074 (13) | 0.0275 (12) | −0.0155 (12) |
C9 | 0.0435 (13) | 0.0687 (18) | 0.0675 (17) | 0.0012 (12) | 0.0045 (12) | −0.0007 (15) |
C8 | 0.0532 (13) | 0.0592 (15) | 0.0434 (12) | 0.0150 (11) | 0.0128 (10) | 0.0037 (11) |
C4 | 0.0736 (18) | 0.086 (2) | 0.0411 (13) | −0.0076 (16) | 0.0303 (13) | −0.0077 (13) |
C10 | 0.0522 (14) | 0.081 (2) | 0.0412 (13) | −0.0014 (14) | 0.0020 (11) | −0.0180 (13) |
Ni1—N2 | 2.092 (2) | N2—C8 | 1.459 (3) |
Ni1—N2i | 2.092 (2) | N2—H2A | 0.90 (4) |
Ni1—N3 | 2.118 (2) | N2—H2B | 0.81 (4) |
Ni1—N3i | 2.118 (2) | C6—C5 | 1.391 (4) |
Ni1—N1i | 2.2604 (18) | C6—H6 | 0.9300 |
Ni1—N1 | 2.2604 (18) | C5—C4 | 1.386 (5) |
S1—O2 | 1.4375 (19) | C5—H5 | 0.9300 |
S1—O3 | 1.4409 (18) | C3—C4 | 1.385 (4) |
S1—N1 | 1.622 (2) | C3—H3 | 0.9300 |
S1—C7 | 1.756 (2) | C9—C8 | 1.473 (4) |
N1—C1 | 1.367 (3) | C9—C10 | 1.493 (4) |
N3—C10 | 1.475 (3) | C9—H9A | 0.9700 |
N3—H3A | 0.78 (3) | C9—H9B | 0.9700 |
N3—H3B | 0.85 (4) | C8—H8A | 0.9700 |
C2—C7 | 1.378 (3) | C8—H8B | 0.9700 |
C2—C3 | 1.382 (3) | C4—H4 | 0.9300 |
C2—C1 | 1.497 (3) | C10—H10A | 0.9700 |
O1—C1 | 1.227 (3) | C10—H10B | 0.9700 |
C7—C6 | 1.379 (3) | ||
N2—Ni1—N2i | 180.00 (12) | N1—C1—C2 | 112.75 (19) |
N2—Ni1—N3 | 91.43 (9) | C8—N2—Ni1 | 122.38 (16) |
N2i—Ni1—N3 | 88.57 (9) | C8—N2—H2A | 108 (2) |
N2—Ni1—N3i | 88.57 (9) | Ni1—N2—H2A | 101 (2) |
N2i—Ni1—N3i | 91.43 (9) | C8—N2—H2B | 107 (3) |
N3—Ni1—N3i | 180.0 | Ni1—N2—H2B | 106 (2) |
N2—Ni1—N1i | 86.79 (8) | H2A—N2—H2B | 112 (3) |
N2i—Ni1—N1i | 93.21 (8) | C7—C6—C5 | 116.5 (2) |
N3—Ni1—N1i | 91.13 (8) | C7—C6—H6 | 121.7 |
N3i—Ni1—N1i | 88.87 (8) | C5—C6—H6 | 121.7 |
N2—Ni1—N1 | 93.21 (8) | C4—C5—C6 | 120.8 (3) |
N2i—Ni1—N1 | 86.79 (8) | C4—C5—H5 | 119.6 |
N3—Ni1—N1 | 88.87 (8) | C6—C5—H5 | 119.6 |
N3i—Ni1—N1 | 91.13 (8) | C2—C3—C4 | 117.9 (3) |
N1i—Ni1—N1 | 180.000 (1) | C2—C3—H3 | 121.0 |
O2—S1—O3 | 114.68 (12) | C4—C3—H3 | 121.0 |
O2—S1—N1 | 111.28 (11) | C8—C9—C10 | 116.9 (2) |
O3—S1—N1 | 110.67 (11) | C8—C9—H9A | 108.1 |
O2—S1—C7 | 110.08 (11) | C10—C9—H9A | 108.1 |
O3—S1—C7 | 111.32 (11) | C8—C9—H9B | 108.1 |
N1—S1—C7 | 97.53 (10) | C10—C9—H9B | 108.1 |
C1—N1—S1 | 110.76 (15) | H9A—C9—H9B | 107.3 |
C1—N1—Ni1 | 126.42 (15) | N2—C8—C9 | 113.9 (2) |
S1—N1—Ni1 | 122.67 (9) | N2—C8—H8A | 108.8 |
C10—N3—Ni1 | 119.70 (17) | C9—C8—H8A | 108.8 |
C10—N3—H3A | 109 (2) | N2—C8—H8B | 108.8 |
Ni1—N3—H3A | 105 (2) | C9—C8—H8B | 108.8 |
C10—N3—H3B | 103 (2) | H8A—C8—H8B | 107.7 |
Ni1—N3—H3B | 110 (2) | C3—C4—C5 | 121.6 (2) |
H3A—N3—H3B | 110 (3) | C3—C4—H4 | 119.2 |
C7—C2—C3 | 119.8 (2) | C5—C4—H4 | 119.2 |
C7—C2—C1 | 111.95 (19) | N3—C10—C9 | 115.5 (2) |
C3—C2—C1 | 128.2 (2) | N3—C10—H10A | 108.4 |
C2—C7—C6 | 123.3 (2) | C9—C10—H10A | 108.4 |
C2—C7—S1 | 106.84 (16) | N3—C10—H10B | 108.4 |
C6—C7—S1 | 129.82 (18) | C9—C10—H10B | 108.4 |
O1—C1—N1 | 124.4 (2) | H10A—C10—H10B | 107.5 |
O1—C1—C2 | 122.9 (2) | ||
O2—S1—N1—C1 | 111.22 (18) | O3—S1—C7—C6 | −62.0 (2) |
O3—S1—N1—C1 | −120.04 (17) | N1—S1—C7—C6 | −177.7 (2) |
C7—S1—N1—C1 | −3.81 (18) | S1—N1—C1—O1 | −175.6 (2) |
O2—S1—N1—Ni1 | −72.90 (14) | Ni1—N1—C1—O1 | 8.7 (4) |
O3—S1—N1—Ni1 | 55.84 (15) | S1—N1—C1—C2 | 4.4 (2) |
C7—S1—N1—Ni1 | 172.06 (11) | Ni1—N1—C1—C2 | −171.32 (14) |
N2—Ni1—N1—C1 | 122.6 (2) | C7—C2—C1—O1 | 177.2 (2) |
N2i—Ni1—N1—C1 | −57.4 (2) | C3—C2—C1—O1 | −2.7 (4) |
N3—Ni1—N1—C1 | 31.3 (2) | C7—C2—C1—N1 | −2.8 (3) |
N3i—Ni1—N1—C1 | −148.7 (2) | C3—C2—C1—N1 | 177.3 (2) |
N2—Ni1—N1—S1 | −52.59 (13) | N3—Ni1—N2—C8 | 27.2 (2) |
N2i—Ni1—N1—S1 | 127.41 (13) | N3i—Ni1—N2—C8 | −152.8 (2) |
N3—Ni1—N1—S1 | −143.95 (13) | N1i—Ni1—N2—C8 | 118.2 (2) |
N3i—Ni1—N1—S1 | 36.05 (13) | N1—Ni1—N2—C8 | −61.8 (2) |
N2—Ni1—N3—C10 | −26.0 (2) | C2—C7—C6—C5 | −0.2 (4) |
N2i—Ni1—N3—C10 | 154.0 (2) | S1—C7—C6—C5 | 179.64 (19) |
N1i—Ni1—N3—C10 | −112.9 (2) | C7—C6—C5—C4 | 0.5 (4) |
N1—Ni1—N3—C10 | 67.1 (2) | C7—C2—C3—C4 | 0.3 (4) |
C3—C2—C7—C6 | −0.2 (4) | C1—C2—C3—C4 | −179.9 (3) |
C1—C2—C7—C6 | 179.9 (2) | Ni1—N2—C8—C9 | −48.1 (3) |
C3—C2—C7—S1 | 179.9 (2) | C10—C9—C8—N2 | 66.0 (3) |
C1—C2—C7—S1 | 0.1 (2) | C2—C3—C4—C5 | 0.0 (5) |
O2—S1—C7—C2 | −113.86 (17) | C6—C5—C4—C3 | −0.4 (5) |
O3—S1—C7—C2 | 117.82 (17) | Ni1—N3—C10—C9 | 47.0 (3) |
N1—S1—C7—C2 | 2.12 (17) | C8—C9—C10—N3 | −66.7 (4) |
O2—S1—C7—C6 | 66.3 (2) |
Symmetry code: (i) −x, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O3ii | 0.78 (3) | 2.58 (3) | 3.194 (3) | 137 (3) |
N3—H3B···O2i | 0.85 (4) | 2.34 (4) | 3.143 (3) | 158 (3) |
N3—H3B···S1i | 0.85 (4) | 2.82 (4) | 3.431 (2) | 130 (3) |
N2—H2A···O1i | 0.90 (4) | 2.60 (3) | 3.227 (3) | 128 (3) |
N2—H2B···O3iii | 0.81 (4) | 2.39 (4) | 3.090 (3) | 146 (3) |
N3—H3A···O1 | 0.78 (3) | 2.36 (3) | 2.952 (3) | 134 (3) |
N2—H2B···O3 | 0.81 (4) | 2.56 (4) | 3.085 (3) | 124 (3) |
Symmetry codes: (i) −x, −y, −z+1; (ii) x, y+1, z; (iii) −x, −y−1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Ni(C7H4NO3S)2(C3H10N2)2] |
Mr | 571.31 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 11.447 (5), 7.209 (6), 15.236 (5) |
β (°) | 109.313 (5) |
V (Å3) | 1186.5 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.04 |
Crystal size (mm) | 0.52 × 0.35 × 0.15 |
Data collection | |
Diffractometer | Stoe IPDS 2 |
Absorption correction | Integration (X-RED; Stoe & Cie, 2002) |
Tmin, Tmax | 0.673, 0.873 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18160, 2590, 2334 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.101, 0.83 |
No. of reflections | 2590 |
No. of parameters | 177 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.74, −0.37 |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 2006) and Mercury (Macrae et al., 2006), WinGX (Farrugia, 1999).
Ni1—N2 | 2.092 (2) | Ni1—N1 | 2.2604 (18) |
Ni1—N3 | 2.118 (2) | ||
N2—Ni1—N3 | 91.43 (9) | N3—Ni1—N1 | 88.87 (8) |
N2—Ni1—N1 | 93.21 (8) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O3i | 0.78 (3) | 2.58 (3) | 3.194 (3) | 137 (3) |
N3—H3B···O2ii | 0.85 (4) | 2.34 (4) | 3.143 (3) | 158 (3) |
N3—H3B···S1ii | 0.85 (4) | 2.82 (4) | 3.431 (2) | 130 (3) |
N2—H2A···O1ii | 0.90 (4) | 2.60 (3) | 3.227 (3) | 128 (3) |
N2—H2B···O3iii | 0.81 (4) | 2.39 (4) | 3.090 (3) | 146 (3) |
N3—H3A···O1 | 0.78 (3) | 2.36 (3) | 2.952 (3) | 134 (3) |
N2—H2B···O3 | 0.81 (4) | 2.56 (4) | 3.085 (3) | 124 (3) |
Symmetry codes: (i) x, y+1, z; (ii) −x, −y, −z+1; (iii) −x, −y−1, −z+1. |
Acknowledgements
The authors sincerely thank Assoc. Professor Hümeyra Paşaoğlu, Professor Dr. Orhan Büyükgüngör and Assoc. Professor Okan Z. Yeşilel for their contributions.
References
Baran, E. J. & Yilmaz, V. T. (2006). Coord. Chem. Rev. 250, 1980–1999. Web of Science CrossRef CAS Google Scholar
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bulut, İ., Paşaoğlu, H., Kaştaş, G. & Bulut, A. (2007). Acta Cryst. E63, m2409–m2410. Web of Science CSD CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Heren, Z., Paşaoğlu, H., Kaştaş, G. & Akdağ, K. (2008). Z. Anorg. Allg. Chem. 634, 1933–1936. Web of Science CSD CrossRef CAS Google Scholar
Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453–457. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Paşaoğlu, H., Kaştaş, G., Yeşilel, O. Z. & Şahin, O. (2007). Acta Cryst. E63, m2953–m2954. Web of Science CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Stoe & Cie (2002). X-AREA and X-RED32. Stoe & Cie, Darmstadt, Germany. Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Saccharin (3H-benzisothiazol-3-one 1,1-dioxide or o-benzosulfimide) is a well known artificial sweetener. It is readily deprotonated to form saccharinato anion (sac), which is a versatile polyfunctional ligand (Baran & Yilmaz, 2006). Because of the biological significance of saccharin, there has been increased interest in its metal complexes, especially with first-row transition metals (Paşaoğlu et al., 2007; Heren et al., 2008. Saccharin, or its anion, may bond to metals by means of their imino nitrogen, carbonyl oxygen, or sulfonyl oxygen atoms. In the last two decades, the metal saccharinates and metal complexes including saccharin and various N-donor ligands (mono- or bidentate) have been intensively studied by many investigators. In the present study, the mixed-ligand NiII complex of saccharinate with pen (Scheme) is investigated.
In the title compound, NiII ion sits on an inversion center, being coordinated by two N atoms of sac ligand and four N atoms of bidentate pen ligands in trans positions. The bond distances and angles (Table 1) show that the coordination polyhedron of the NiII ion is a distorted octahedron. The equatorial plane of the octahedron is defined by the N atoms of pen ligands, whereas the axial positions are occupied by the N atoms of the sac ligands (Fig. 1). It is seen that the pen ligands chelate the metal ion to form a six-membered ring adopting a half-chair conformation while sac ligands prefer the most common coordination mode. The intra-ligand bond lengths and angles of the sac ligand are similar to those observed in previous studies (Paşaoğlu et al., 2007; Heren et al., 2008). The sac ligand is planar, with an r.m.s deviation of 0.022 Å. The dihedral angle between the equatorial plane and the mean plane of sac was measured as 84.50 (7)°. It is seen in Table 1 that the Ni—Npen bond distances span the range 2.094 (3)–2.119 (3) Å, being shorter than Ni-Nsac distance (2.262 (2) Å) which is comparable to that observed in [Ni(C7H4NO3S)(C5H9N3)2] (2.2874 (19) Å) (Bulut et al., 2007). The crystal packing of the complex is mainly stabilized by hydrogen bonds of N—H···O type (Table 2). Multiple H-bond donor and acceptor behaviors of amine and sulfonyl groups enable a variety of chain and ring systems in the crystal packing. For example, the inter-molecular N2—H2B···O3iii (iii: -x, -1 - y, 1 - z) hydrogen bonds form centrosymmetric R22(12) (Bernstein et al., 1995) rings located at (0, 1/2+n, 1/2: n=0 or integer) positions to form one-dimensional hyrogen bonding network along [010] (Fig. 2). On the other hand, the same ring motifs are also formed by N3—H3B···O2i (i:-x, -y, 1 - z) hydrogen bonds (Fig. 3).