metal-organic compounds
Bis(1,4,7-trithiacyclononane)nickel(II) bis(tetrafluoridoborate) nitromethane disolvate
aDepartment of Chemistry, The University of Tennessee at Chattanoga, Chattanooga, TN 37403, USA, and bCrystallographic Systems, Bruker AXS Inc., 5465 East Cheryl Parkway, Madison, WI 53711, USA
*Correspondence e-mail: John-Lee@utc.edu
The homoleptic thioether title complex, [Ni(C6H12S3)2](BF4)2·2CH3NO2, shows the expeced hexakis(thioether) octahedral environment around the NiII atom. It crystallized as two crystallographically independent complex cations, [Ni(9S3)2]2+ (9S3 = 1,4,7-trithiacyclononane), within the where each NiII lies on an inversion center. In addition to the complex cations, there are two crystallographically independent BF4− anions present to balance the charge, and each shows disorder along a pseudo-C3 axis with ratios of 0.53 (2):0.47 (2) and 0.55 (2):0.45 (2). Two nitromethane solvent molecules per complex cation are also present in the unit cell.
Related literature
For other related NiII complexes, see: Setzer et al. (1983); Blake et al. (1992, 2001, 2007); Nishijo et al. (2003, 2004). For the coordination chemistry of 1,4,7-trithiacyclononane, see: Blake & Schroder (1990); Cooper & Rawle (1990); Glass et al. (1980); Grant et al. (1991); Helm et al. (2005); Setzer et al. (1990). For related complexes that incorporate nitromethane, see: Grant et al. (2005); Helm et al. (2006). For a description of the Cambridge Structural Database, see: Allen (2002).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and local programs.
Supporting information
https://doi.org/10.1107/S1600536811037809/br2171sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811037809/br2171Isup2.hkl
Bis(1,4,7-trithiacyclononane)nickel(II) bistetrafluoroborate dinitromethane solvate was synthesized as previously reported (Setzer et al., 1983). Violet needle-like crystals were obtained by slow diffusion of diethyl ether into a concentrated CH3NO2 solution of the title complex.
All hydrogen atoms were set to calculated geometries and allowed to refine on the positions of the parent atoms.
Structure
revealed disorder in the BF4 anions. In each case there is rotation about a B—F bond, which creates alternative sites for the remaining F atoms. The B—F distances as well as the F···F distances were restrained to be equal within 0.02 Å. The model contains 174 such restraints. This disorder also manifests itself in the anisotropic thermal parameters of the F atoms. The Uij components were restrained to approximate isotropic behavior. In all, 258 restraints were applied.The coordination chemistry of 1,4,7-trithiacyclononane (9S3) has been well studied both by us as well as other groups (Grant et al., 1991; Helm et al., 2005; Helm et al., 2006; Setzer et al., 1990; Setzer et al., 1983; Cooper et al., 1990; Blake et al., 1990). The three sulfur atoms of the 9S3 ligand have been calculated to be all endodentate in the lowest energy conformation of the free ligand (Glass et al., 1980). The endodentate nature of the sulfur atoms of 9S3 provides facile facial coordination to metal centers, and 9S3 has been complexed, in a bis-homoleptic fashion {i.e., [M(9S3)2]n+}, to 26 transistion metals ions to give a total of 72 different structures in a recent search of the Cambridge Structural Database (Allen, 2002; Release with Feb. and May 2011 updates). The complex, bis(1,4,7-trithiacyclononane)nickel(II) tetrafluoroborate, has been previously synthesized and characterized, which includes a single- crystal X-ray
where the crystals were obtained from ethanol evaporation with exclusion of any solvent in the structure (Setzer et al., 1983). In addition, the structure of the dication [Ni(9S3)2]2+ has been crystallographically characterized using a number of different anions (Blake et al., 2007; Blake et al., 2001; Nishijo et al., 2003; Nishijo et al., 2004; Blake et al., 1992). Herein, we wish to report the structure of the coordination compound bis(1,4,7-trithiacyclononane)nickel(II)bistetrafluoroborate dinitromethane solvate to include with the previously reported [Ni(9S3)2]2+ complexes.As can be seen in Figure 1, the title complex displays the expected hexakis (thioether) octahedral geometry around the NiII center where each 9S3 ligand is coordinated to the face of the octahedron. Interestingly, the title complex crystallizes as two crystallographically independent complex cations within the
where each NiII cation lies at the inversion center (Figure 2). In addition, both the tetrafluoroborate anion and nitromethane solvate crystallize as two crystallographically independent anions and solvent molecules, respectively. Out of the seven crystallographically characterized [Ni(9S3)2]2+ complex cations this is the first example where the contains two crystallographically different complex cations. Packing within the monoclinic shows a face-centered array for the [Ni(9S3)2]2+ dication to give a total of four [Ni(9S3)2]2+ complex cations within the Both the BF4- anions and the nitromethane solvate molecules occupy four locations on the face and four locations within the to give a total of eight BF4- anions and eight nitromethane solvate molecules. Thus, the is [Ni(9S3)2][BF4]2.2CH3NO2.Setzer et al. have published the structure of [Ni(9S3)2][BF4]2 that was crystallized from ethanol, and was solved in the same
(P21/c) and approximately the same R1 (0.03) as the title compound (Setzer et al., 1983). However, there are several differences between the previously reported structure of the title complex crystallized from ethanol versus that reported herein from nitromethane. Most notably is the presence of two crystallographically different complex cations. This is likely due, at least in part, to differences in crystal packing in the two different solvents. Secondly, the incorporation of solvent in the is unique to this system, but not unprecedented for crystal growth of similar structures from nitromethane (Helm et al., 2006; Grant et al., 2005). Lastly, there is a difference in the tetrafluoroborate anions in the structures. In the original report (Setzer et al., 1983), no disorder was observed in the BF4- anions compared to the compound shown in Figure 2 where disorder in the B-F bonds along a C3 axis is observed. Again, this could be attributed to different crystal packing in the two different solvents; however, temperature effects cannot be discounted as data collection on the Bruker SMART X2S was done at 203 K.For other related NiII complexes, see: Setzer et al. (1983); Blake et al. (1992, 2001, (2007); Nishijo et al. (2003, 2004). For the coordination chemistry of 1,4,7-trithiacyclononane, see: Blake & Schroder (1990); Cooper & Rawle (1990); Glass et al. (1980); Grant et al. (1991); Helm et al. (2005); Setzer et al. (1990). For related complexes that incorporate nitromethane, see: Grant et al. (2005); Helm et al. (2006). For a description of the Cambridge structural Database, see: Allen (2002).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and local programs.[Ni(C6H12S3)2](BF4)2·2CH3NO2 | F(000) = 1464 |
Mr = 715.09 | Dx = 1.721 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 241 reflections |
a = 9.1755 (18) Å | θ = 2.8–26.2° |
b = 19.825 (4) Å | µ = 1.24 mm−1 |
c = 15.173 (3) Å | T = 200 K |
β = 90.88 (3)° | Needle, violet |
V = 2759.6 (9) Å3 | 0.40 × 0.20 × 0.10 mm |
Z = 4 |
Bruker SMART X2S benchtop crystallographic system diffractometer | 4889 independent reflections |
Radiation source: sealed tube | 3855 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
Detector resolution: 8.3330 pixels mm-1 | θmax = 25.3°, θmin = 1.7° |
thin–slice ω scans | h = −10→10 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | k = −23→23 |
Tmin = 0.371, Tmax = 0.941 | l = −18→18 |
25688 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)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.090 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0364P)2 + 1.8397P] where P = (Fo2 + 2Fc2)/3 |
4889 reflections | (Δ/σ)max = 0.001 |
395 parameters | Δρmax = 0.56 e Å−3 |
258 restraints | Δρmin = −0.39 e Å−3 |
[Ni(C6H12S3)2](BF4)2·2CH3NO2 | V = 2759.6 (9) Å3 |
Mr = 715.09 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.1755 (18) Å | µ = 1.24 mm−1 |
b = 19.825 (4) Å | T = 200 K |
c = 15.173 (3) Å | 0.40 × 0.20 × 0.10 mm |
β = 90.88 (3)° |
Bruker SMART X2S benchtop crystallographic system diffractometer | 4889 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 3855 reflections with I > 2σ(I) |
Tmin = 0.371, Tmax = 0.941 | Rint = 0.054 |
25688 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 258 restraints |
wR(F2) = 0.090 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.56 e Å−3 |
4889 reflections | Δρmin = −0.39 e Å−3 |
395 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 | Occ. (<1) | |
Ni1 | 1.0000 | 0.5000 | 0.5000 | 0.02711 (14) | |
S1 | 0.74469 (9) | 0.49669 (4) | 0.53181 (6) | 0.0376 (2) | |
S2 | 0.96856 (9) | 0.61209 (4) | 0.44732 (5) | 0.0370 (2) | |
S3 | 1.03907 (9) | 0.54595 (4) | 0.64348 (5) | 0.0355 (2) | |
C1 | 0.6840 (4) | 0.5643 (2) | 0.4602 (2) | 0.0458 (9) | |
H1A | 0.6825 | 0.5474 | 0.3988 | 0.055* | |
H1B | 0.5826 | 0.5760 | 0.4754 | 0.055* | |
C2 | 0.7751 (3) | 0.62848 (19) | 0.4635 (2) | 0.0448 (8) | |
H2A | 0.7623 | 0.6506 | 0.5213 | 0.054* | |
H2B | 0.7396 | 0.6599 | 0.4172 | 0.054* | |
C3 | 1.0551 (4) | 0.65842 (18) | 0.5360 (2) | 0.0447 (8) | |
H3A | 1.1620 | 0.6541 | 0.5303 | 0.054* | |
H3B | 1.0303 | 0.7068 | 0.5291 | 0.054* | |
C4 | 1.0139 (4) | 0.63624 (18) | 0.6276 (2) | 0.0453 (8) | |
H4A | 0.9106 | 0.6479 | 0.6378 | 0.054* | |
H4B | 1.0744 | 0.6610 | 0.6714 | 0.054* | |
C5 | 0.8694 (4) | 0.52059 (18) | 0.6949 (2) | 0.0421 (8) | |
H5A | 0.8742 | 0.4717 | 0.7076 | 0.051* | |
H5B | 0.8613 | 0.5445 | 0.7519 | 0.051* | |
C6 | 0.7342 (4) | 0.5343 (2) | 0.6409 (2) | 0.0438 (8) | |
H6A | 0.7205 | 0.5836 | 0.6350 | 0.053* | |
H6B | 0.6487 | 0.5158 | 0.6716 | 0.053* | |
Ni2 | 0.5000 | 0.5000 | 1.0000 | 0.02718 (14) | |
S4 | 0.46860 (9) | 0.61205 (4) | 1.05263 (5) | 0.0370 (2) | |
S5 | 0.53896 (9) | 0.54594 (4) | 0.85648 (5) | 0.0356 (2) | |
S6 | 0.24477 (9) | 0.49668 (4) | 0.96823 (6) | 0.0376 (2) | |
C7 | 0.5552 (4) | 0.65834 (18) | 0.9641 (2) | 0.0443 (8) | |
H7A | 0.5306 | 0.7067 | 0.9704 | 0.053* | |
H7B | 0.6622 | 0.6540 | 0.9716 | 0.053* | |
C8 | 0.5141 (4) | 0.63632 (18) | 0.8721 (2) | 0.0443 (8) | |
H8A | 0.5746 | 0.6610 | 0.8294 | 0.053* | |
H8B | 0.4108 | 0.6481 | 0.8601 | 0.053* | |
C9 | 0.3690 (4) | 0.52056 (19) | 0.8050 (2) | 0.0421 (8) | |
H9A | 0.3584 | 0.5443 | 0.7479 | 0.050* | |
H9B | 0.3735 | 0.4716 | 0.7924 | 0.050* | |
C10 | 0.2341 (4) | 0.53443 (19) | 0.8593 (2) | 0.0436 (8) | |
H10A | 0.1474 | 0.5165 | 0.8276 | 0.052* | |
H10B | 0.2215 | 0.5838 | 0.8655 | 0.052* | |
C11 | 0.1840 (4) | 0.56433 (19) | 1.0398 (2) | 0.0456 (9) | |
H11A | 0.0821 | 0.5758 | 1.0235 | 0.055* | |
H11B | 0.1843 | 0.5475 | 1.1012 | 0.055* | |
C12 | 0.2751 (4) | 0.62830 (19) | 1.0366 (2) | 0.0452 (9) | |
H12A | 0.2419 | 0.6597 | 1.0829 | 0.054* | |
H12B | 0.2593 | 0.6505 | 0.9788 | 0.054* | |
B1 | 0.5621 (4) | 0.3228 (2) | 0.3852 (3) | 0.0454 (10) | |
F2 | 0.4223 (3) | 0.31428 (16) | 0.3592 (2) | 0.0965 (10) | |
F1 | 0.6404 (15) | 0.2690 (6) | 0.3621 (9) | 0.126 (5) | 0.47 (2) |
F3 | 0.5603 (13) | 0.3216 (7) | 0.4745 (5) | 0.098 (4) | 0.47 (2) |
F4 | 0.6175 (16) | 0.3788 (7) | 0.3580 (12) | 0.138 (7) | 0.47 (2) |
F1' | 0.6551 (9) | 0.2978 (11) | 0.3282 (12) | 0.161 (7) | 0.53 (2) |
F3' | 0.5895 (16) | 0.3014 (8) | 0.4656 (8) | 0.127 (5) | 0.53 (2) |
F4' | 0.5896 (13) | 0.3911 (4) | 0.3868 (9) | 0.090 (3) | 0.53 (2) |
B2 | 0.9384 (4) | 0.6773 (2) | 0.8853 (3) | 0.0466 (10) | |
F5 | 0.9375 (14) | 0.6777 (8) | 0.9741 (5) | 0.102 (5) | 0.45 (2) |
F6 | 0.8808 (17) | 0.6223 (7) | 0.8555 (13) | 0.139 (8) | 0.45 (2) |
F7 | 0.8620 (15) | 0.7319 (6) | 0.8613 (10) | 0.130 (6) | 0.45 (2) |
F8 | 1.0777 (3) | 0.68555 (16) | 0.8592 (2) | 0.0960 (10) | |
F5' | 0.9137 (15) | 0.6977 (8) | 0.9660 (7) | 0.135 (6) | 0.55 (2) |
F6' | 0.9095 (12) | 0.6092 (4) | 0.8865 (8) | 0.086 (3) | 0.55 (2) |
F7' | 0.8436 (9) | 0.7031 (10) | 0.8294 (12) | 0.163 (7) | 0.55 (2) |
N1 | 0.5976 (5) | 0.3452 (3) | 0.6971 (3) | 0.0804 (13) | |
O1 | 0.4758 (5) | 0.3253 (4) | 0.6821 (3) | 0.185 (3) | |
O2 | 0.6242 (8) | 0.3969 (3) | 0.7308 (5) | 0.179 (3) | |
C13 | 0.7127 (5) | 0.3000 (2) | 0.6732 (3) | 0.0674 (12) | |
H13A | 0.7133 | 0.2610 | 0.7130 | 0.101* | |
H13B | 0.8065 | 0.3235 | 0.6780 | 0.101* | |
H13C | 0.6971 | 0.2847 | 0.6124 | 0.101* | |
N2 | 0.9028 (5) | 0.6549 (3) | 0.1971 (3) | 0.0808 (13) | |
O3 | 0.8747 (8) | 0.6035 (3) | 0.2312 (5) | 0.184 (3) | |
O4 | 1.0248 (5) | 0.6746 (4) | 0.1823 (3) | 0.186 (4) | |
C14 | 0.7875 (5) | 0.7002 (2) | 0.1735 (3) | 0.0678 (12) | |
H14A | 0.6936 | 0.6774 | 0.1803 | 0.102* | |
H14B | 0.7983 | 0.7142 | 0.1120 | 0.102* | |
H14C | 0.7918 | 0.7399 | 0.2118 | 0.102* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.0251 (3) | 0.0323 (3) | 0.0239 (3) | 0.0019 (2) | 0.0015 (2) | −0.0014 (2) |
S1 | 0.0277 (4) | 0.0460 (5) | 0.0393 (5) | −0.0004 (4) | 0.0041 (3) | −0.0042 (4) |
S2 | 0.0370 (5) | 0.0401 (5) | 0.0340 (4) | 0.0038 (4) | 0.0024 (3) | 0.0056 (3) |
S3 | 0.0386 (5) | 0.0403 (5) | 0.0274 (4) | 0.0029 (3) | −0.0026 (3) | −0.0032 (3) |
C1 | 0.0305 (18) | 0.063 (2) | 0.044 (2) | 0.0107 (16) | −0.0046 (14) | 0.0016 (17) |
C2 | 0.0359 (19) | 0.050 (2) | 0.048 (2) | 0.0160 (16) | −0.0016 (15) | 0.0048 (17) |
C3 | 0.049 (2) | 0.0345 (19) | 0.051 (2) | −0.0017 (16) | −0.0044 (16) | 0.0021 (16) |
C4 | 0.054 (2) | 0.037 (2) | 0.045 (2) | −0.0006 (16) | −0.0049 (16) | −0.0117 (15) |
C5 | 0.053 (2) | 0.047 (2) | 0.0269 (17) | −0.0001 (16) | 0.0105 (14) | −0.0012 (14) |
C6 | 0.042 (2) | 0.052 (2) | 0.0376 (19) | 0.0048 (16) | 0.0141 (15) | −0.0005 (16) |
Ni2 | 0.0252 (3) | 0.0323 (3) | 0.0240 (3) | 0.0022 (2) | 0.0000 (2) | 0.0015 (2) |
S4 | 0.0371 (5) | 0.0399 (5) | 0.0339 (4) | 0.0037 (4) | −0.0006 (3) | −0.0052 (3) |
S5 | 0.0391 (5) | 0.0402 (5) | 0.0276 (4) | 0.0022 (3) | 0.0043 (3) | 0.0032 (3) |
S6 | 0.0276 (4) | 0.0455 (5) | 0.0396 (5) | −0.0010 (4) | −0.0022 (3) | 0.0039 (4) |
C7 | 0.049 (2) | 0.0332 (19) | 0.051 (2) | −0.0044 (16) | 0.0063 (16) | −0.0011 (15) |
C8 | 0.050 (2) | 0.037 (2) | 0.046 (2) | 0.0029 (16) | 0.0051 (16) | 0.0096 (15) |
C9 | 0.049 (2) | 0.049 (2) | 0.0281 (17) | 0.0017 (16) | −0.0070 (14) | 0.0023 (14) |
C10 | 0.044 (2) | 0.049 (2) | 0.0372 (19) | 0.0046 (17) | −0.0131 (14) | 0.0011 (16) |
C11 | 0.0302 (18) | 0.063 (2) | 0.044 (2) | 0.0095 (16) | 0.0066 (14) | −0.0004 (17) |
C12 | 0.038 (2) | 0.052 (2) | 0.045 (2) | 0.0158 (16) | 0.0034 (15) | −0.0059 (17) |
B1 | 0.040 (2) | 0.049 (3) | 0.047 (2) | 0.0007 (19) | −0.0008 (18) | 0.000 (2) |
F2 | 0.0520 (16) | 0.097 (2) | 0.140 (3) | −0.0027 (15) | −0.0223 (15) | −0.0342 (19) |
F1 | 0.130 (10) | 0.091 (7) | 0.159 (11) | 0.067 (6) | 0.022 (7) | −0.010 (6) |
F3 | 0.129 (7) | 0.122 (9) | 0.045 (5) | 0.035 (6) | 0.016 (4) | −0.011 (5) |
F4 | 0.123 (9) | 0.145 (12) | 0.145 (12) | −0.047 (9) | −0.026 (8) | 0.123 (11) |
F1' | 0.070 (5) | 0.256 (16) | 0.160 (11) | −0.004 (7) | 0.037 (6) | −0.144 (11) |
F3' | 0.138 (9) | 0.120 (8) | 0.123 (9) | −0.064 (7) | −0.051 (7) | 0.083 (7) |
F4' | 0.094 (6) | 0.061 (4) | 0.115 (7) | −0.025 (4) | −0.009 (5) | −0.008 (5) |
B2 | 0.042 (2) | 0.050 (3) | 0.047 (2) | −0.002 (2) | 0.0008 (18) | −0.002 (2) |
F5 | 0.123 (8) | 0.142 (10) | 0.039 (5) | 0.034 (7) | −0.012 (5) | 0.018 (5) |
F6 | 0.125 (10) | 0.152 (14) | 0.140 (13) | −0.047 (10) | 0.023 (8) | −0.120 (12) |
F7 | 0.132 (10) | 0.086 (7) | 0.171 (12) | 0.067 (7) | −0.030 (7) | 0.003 (7) |
F8 | 0.0526 (16) | 0.098 (2) | 0.138 (3) | −0.0020 (15) | 0.0230 (16) | 0.0343 (19) |
F5' | 0.151 (9) | 0.131 (8) | 0.123 (9) | −0.073 (7) | 0.059 (7) | −0.094 (7) |
F6' | 0.094 (5) | 0.059 (4) | 0.104 (7) | −0.023 (3) | 0.011 (4) | 0.000 (4) |
F7' | 0.067 (5) | 0.248 (15) | 0.175 (11) | −0.005 (7) | −0.035 (5) | 0.147 (11) |
N1 | 0.066 (3) | 0.100 (4) | 0.077 (3) | 0.028 (3) | 0.022 (2) | 0.043 (3) |
O1 | 0.054 (3) | 0.376 (11) | 0.125 (4) | 0.029 (4) | 0.000 (2) | 0.095 (5) |
O2 | 0.275 (8) | 0.060 (3) | 0.206 (6) | 0.029 (4) | 0.132 (6) | 0.008 (3) |
C13 | 0.065 (3) | 0.071 (3) | 0.066 (3) | 0.004 (2) | 0.004 (2) | −0.001 (2) |
N2 | 0.068 (3) | 0.101 (4) | 0.073 (3) | 0.026 (3) | −0.023 (2) | −0.044 (3) |
O3 | 0.278 (8) | 0.060 (3) | 0.209 (6) | 0.032 (4) | −0.133 (6) | −0.008 (4) |
O4 | 0.052 (3) | 0.376 (11) | 0.131 (4) | 0.028 (4) | 0.002 (2) | −0.097 (5) |
C14 | 0.067 (3) | 0.068 (3) | 0.068 (3) | 0.004 (2) | −0.003 (2) | 0.000 (2) |
Ni1—S2i | 2.3776 (9) | C7—H7A | 0.9900 |
Ni1—S2 | 2.3776 (9) | C7—H7B | 0.9900 |
Ni1—S3 | 2.3820 (9) | C8—H8A | 0.9900 |
Ni1—S3i | 2.3821 (9) | C8—H8B | 0.9900 |
Ni1—S1i | 2.3999 (9) | C9—C10 | 1.522 (5) |
Ni1—S1 | 2.3999 (9) | C9—H9A | 0.9900 |
S1—C1 | 1.808 (4) | C9—H9B | 0.9900 |
S1—C6 | 1.819 (3) | C10—H10A | 0.9900 |
S2—C3 | 1.803 (4) | C10—H10B | 0.9900 |
S2—C2 | 1.825 (3) | C11—C12 | 1.520 (5) |
S3—C4 | 1.820 (4) | C11—H11A | 0.9900 |
S3—C5 | 1.822 (3) | C11—H11B | 0.9900 |
C1—C2 | 1.523 (5) | C12—H12A | 0.9900 |
C1—H1A | 0.9900 | C12—H12B | 0.9900 |
C1—H1B | 0.9900 | B1—F4 | 1.291 (8) |
C2—H2A | 0.9900 | B1—F3' | 1.312 (8) |
C2—H2B | 0.9900 | B1—F1' | 1.321 (8) |
C3—C4 | 1.512 (5) | B1—F1 | 1.336 (8) |
C3—H3A | 0.9900 | B1—F2 | 1.347 (5) |
C3—H3B | 0.9900 | B1—F3 | 1.355 (8) |
C4—H4A | 0.9900 | B1—F4' | 1.377 (8) |
C4—H4B | 0.9900 | B2—F6 | 1.289 (9) |
C5—C6 | 1.500 (5) | B2—F7' | 1.310 (8) |
C5—H5A | 0.9900 | B2—F5' | 1.312 (8) |
C5—H5B | 0.9900 | B2—F7 | 1.338 (8) |
C6—H6A | 0.9900 | B2—F5 | 1.348 (8) |
C6—H6B | 0.9900 | B2—F8 | 1.354 (5) |
Ni2—S4ii | 2.3795 (9) | B2—F6' | 1.375 (8) |
Ni2—S4 | 2.3795 (9) | N1—O2 | 1.170 (7) |
Ni2—S6ii | 2.3846 (10) | N1—O1 | 1.204 (7) |
Ni2—S6 | 2.3846 (10) | N1—C13 | 1.435 (6) |
Ni2—S5 | 2.3923 (9) | C13—H13A | 0.9800 |
Ni2—S5ii | 2.3923 (9) | C13—H13B | 0.9800 |
S4—C12 | 1.817 (3) | C13—H13C | 0.9800 |
S4—C7 | 1.819 (4) | N2—O3 | 1.174 (7) |
S5—C9 | 1.805 (3) | N2—O4 | 1.210 (6) |
S5—C8 | 1.822 (4) | N2—C14 | 1.428 (6) |
S6—C10 | 1.815 (3) | C14—H14A | 0.9800 |
S6—C11 | 1.819 (4) | C14—H14B | 0.9800 |
C7—C8 | 1.505 (5) | C14—H14C | 0.9800 |
S2i—Ni1—S2 | 180.000 (1) | S4ii—Ni2—S4 | 180.00 (4) |
S2i—Ni1—S3 | 91.97 (3) | S4ii—Ni2—S6ii | 88.28 (3) |
S2—Ni1—S3 | 88.03 (3) | S4—Ni2—S6ii | 91.72 (3) |
S2i—Ni1—S3i | 88.03 (3) | S4ii—Ni2—S6 | 91.72 (3) |
S2—Ni1—S3i | 91.97 (3) | S4—Ni2—S6 | 88.28 (3) |
S3—Ni1—S3i | 180.0 | S6ii—Ni2—S6 | 180.00 (4) |
S2i—Ni1—S1i | 88.82 (3) | S4ii—Ni2—S5 | 91.68 (3) |
S2—Ni1—S1i | 91.18 (3) | S4—Ni2—S5 | 88.32 (3) |
S3—Ni1—S1i | 92.27 (4) | S6ii—Ni2—S5 | 90.78 (4) |
S3i—Ni1—S1i | 87.73 (4) | S6—Ni2—S5 | 89.22 (4) |
S2i—Ni1—S1 | 91.18 (3) | S4ii—Ni2—S5ii | 88.32 (3) |
S2—Ni1—S1 | 88.82 (3) | S4—Ni2—S5ii | 91.68 (3) |
S3—Ni1—S1 | 87.73 (4) | S6ii—Ni2—S5ii | 89.22 (4) |
S3i—Ni1—S1 | 92.27 (4) | S6—Ni2—S5ii | 90.78 (4) |
S1i—Ni1—S1 | 180.0 | S5—Ni2—S5ii | 180.00 (4) |
C1—S1—C6 | 102.91 (17) | C12—S4—C7 | 104.40 (17) |
C1—S1—Ni1 | 98.70 (12) | C12—S4—Ni2 | 104.10 (12) |
C6—S1—Ni1 | 103.71 (12) | C7—S4—Ni2 | 99.60 (12) |
C3—S2—C2 | 103.14 (17) | C9—S5—C8 | 102.78 (17) |
C3—S2—Ni1 | 100.11 (12) | C9—S5—Ni2 | 98.47 (11) |
C2—S2—Ni1 | 103.56 (12) | C8—S5—Ni2 | 103.58 (11) |
C4—S3—C5 | 102.74 (17) | C10—S6—C11 | 103.12 (17) |
C4—S3—Ni1 | 103.76 (11) | C10—S6—Ni2 | 102.22 (12) |
C5—S3—Ni1 | 99.66 (11) | C11—S6—Ni2 | 99.66 (12) |
C2—C1—S1 | 115.8 (2) | C8—C7—S4 | 115.6 (2) |
C2—C1—H1A | 108.3 | C8—C7—H7A | 108.4 |
S1—C1—H1A | 108.3 | S4—C7—H7A | 108.4 |
C2—C1—H1B | 108.3 | C8—C7—H7B | 108.4 |
S1—C1—H1B | 108.3 | S4—C7—H7B | 108.4 |
H1A—C1—H1B | 107.4 | H7A—C7—H7B | 107.4 |
C1—C2—S2 | 112.4 (2) | C7—C8—S5 | 112.1 (2) |
C1—C2—H2A | 109.1 | C7—C8—H8A | 109.2 |
S2—C2—H2A | 109.1 | S5—C8—H8A | 109.2 |
C1—C2—H2B | 109.1 | C7—C8—H8B | 109.2 |
S2—C2—H2B | 109.1 | S5—C8—H8B | 109.2 |
H2A—C2—H2B | 107.9 | H8A—C8—H8B | 107.9 |
C4—C3—S2 | 115.1 (3) | C10—C9—S5 | 114.8 (2) |
C4—C3—H3A | 108.5 | C10—C9—H9A | 108.6 |
S2—C3—H3A | 108.5 | S5—C9—H9A | 108.6 |
C4—C3—H3B | 108.5 | C10—C9—H9B | 108.6 |
S2—C3—H3B | 108.5 | S5—C9—H9B | 108.6 |
H3A—C3—H3B | 107.5 | H9A—C9—H9B | 107.5 |
C3—C4—S3 | 112.0 (2) | C9—C10—S6 | 112.7 (2) |
C3—C4—H4A | 109.2 | C9—C10—H10A | 109.1 |
S3—C4—H4A | 109.2 | S6—C10—H10A | 109.1 |
C3—C4—H4B | 109.2 | C9—C10—H10B | 109.1 |
S3—C4—H4B | 109.2 | S6—C10—H10B | 109.1 |
H4A—C4—H4B | 107.9 | H10A—C10—H10B | 107.8 |
C6—C5—S3 | 114.9 (2) | C12—C11—S6 | 115.0 (2) |
C6—C5—H5A | 108.5 | C12—C11—H11A | 108.5 |
S3—C5—H5A | 108.5 | S6—C11—H11A | 108.5 |
C6—C5—H5B | 108.5 | C12—C11—H11B | 108.5 |
S3—C5—H5B | 108.5 | S6—C11—H11B | 108.5 |
H5A—C5—H5B | 107.5 | H11A—C11—H11B | 107.5 |
C5—C6—S1 | 111.6 (2) | C11—C12—S4 | 112.6 (2) |
C5—C6—H6A | 109.3 | C11—C12—H12A | 109.1 |
S1—C6—H6A | 109.3 | S4—C12—H12A | 109.1 |
C5—C6—H6B | 109.3 | C11—C12—H12B | 109.1 |
S1—C6—H6B | 109.3 | S4—C12—H12B | 109.1 |
H6A—C6—H6B | 108.0 | H12A—C12—H12B | 107.8 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Ni(C6H12S3)2](BF4)2·2CH3NO2 |
Mr | 715.09 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 200 |
a, b, c (Å) | 9.1755 (18), 19.825 (4), 15.173 (3) |
β (°) | 90.88 (3) |
V (Å3) | 2759.6 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.24 |
Crystal size (mm) | 0.40 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART X2S benchtop crystallographic system |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.371, 0.941 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 25688, 4889, 3855 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.602 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.090, 1.05 |
No. of reflections | 4889 |
No. of parameters | 395 |
No. of restraints | 258 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.56, −0.39 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and local programs.
Acknowledgements
Acknowledgements are made to the following for their generous support of this research: the National Science Foundation RUI Program (CHE-0841659), the National Science Foundation MRI Program (CHE-0951711), the Grote Chemistry Fund at the University of Tennessee at Chattanooga. Professor Daron E. Janzen is also thanked for useful discussions.
References
Allen, F. H. (2002). Acta Cryst. B58, 380–388. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Blake, A. J., Brooks, N. R., Champness, N. R., Hubberstey, P., Keppie, I. J., Schröder, M. & Marr, A. C. (2001). Acta Cryst. E57, m376–m377. Web of Science CSD CrossRef IUCr Journals Google Scholar
Blake, A. J., Gould, R. O., Halcrow, M. A., Holder, A. J., Hyde, T. I. & Schroder, M. (1992). J. Chem. Soc. Dalton Trans. pp. 3427–3431. CSD CrossRef Web of Science Google Scholar
Blake, A. J., Li, W.-S., Lippolis, V., Parsons, S. & Schröder, M. (2007). Acta Cryst. B63, 81–92. Web of Science CSD CrossRef IUCr Journals Google Scholar
Blake, A. J. & Schroder, M. (1990). Advances in Inorganic Chemistry, Vol. 35. New York: Academic Press Inc. Google Scholar
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cooper, S. R. & Rawle, S. C. (1990). Struct. Bonding (Berlin), 72, 1–72. CrossRef CAS Google Scholar
Glass, R. S., Wilson, G. S. & Setzer, W. N. (1980). J. Am. Chem. Soc. 102, 5068–5069. CSD CrossRef CAS Web of Science Google Scholar
Grant, G. J., Lee, J. P., Helm, M. L., VanDerveer, D. G., Pennington, W. T., Harris, J. L., Mehne, L. F. & Klinger, D. W. (2005). J. Organomet. Chem. 690, 629–639. Web of Science CSD CrossRef CAS Google Scholar
Grant, G. J., Mauldin, P. M. & Setzer, W. N. (1991). J. Chem. Educ. 68, 605–607. CrossRef CAS Google Scholar
Helm, M. L., Helton, G. P., VanDerveer, D. G. & Grant, G. J. (2005). Inorg. Chem. 44, 5696–5705. Web of Science CSD CrossRef PubMed CAS Google Scholar
Helm, M. L., Hill, L. L., Lee, J. P., VanDerveer, D. G. & Grant, G. J. (2006). Dalton Trans. pp. 3534–3543. Web of Science CSD CrossRef Google Scholar
Nishijo, J., Miyazaki, A. & Enoki, T. (2003). Polyhedron, 22, 1755–1758. CrossRef CAS Google Scholar
Nishijo, J., Miyazaki, A. & Enoki, T. (2004). Bull. Chem. Soc. Jpn, 77, 715–727. Web of Science CSD CrossRef CAS Google Scholar
Setzer, W. N., Cacioppo, E. L., Guo, Q., Grant, G. J., Kim, D. D., Hubbard, J. L. & VanDerveer, D. G. (1990). Inorg. Chem. 29, 2672–2681. CSD CrossRef CAS Web of Science Google Scholar
Setzer, W. N., Ogle, C. A., Wilson, G. S. & Glass, R. S. (1983). Inorg. Chem. 22, 266–271. CSD CrossRef CAS Web of Science Google Scholar
Sheldrick, G. M. (2004). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals 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.
The coordination chemistry of 1,4,7-trithiacyclononane (9S3) has been well studied both by us as well as other groups (Grant et al., 1991; Helm et al., 2005; Helm et al., 2006; Setzer et al., 1990; Setzer et al., 1983; Cooper et al., 1990; Blake et al., 1990). The three sulfur atoms of the 9S3 ligand have been calculated to be all endodentate in the lowest energy conformation of the free ligand (Glass et al., 1980). The endodentate nature of the sulfur atoms of 9S3 provides facile facial coordination to metal centers, and 9S3 has been complexed, in a bis-homoleptic fashion {i.e., [M(9S3)2]n+}, to 26 transistion metals ions to give a total of 72 different structures in a recent search of the Cambridge Structural Database (Allen, 2002; Release with Feb. and May 2011 updates). The complex, bis(1,4,7-trithiacyclononane)nickel(II) tetrafluoroborate, has been previously synthesized and characterized, which includes a single- crystal X-ray crystal structure where the crystals were obtained from ethanol evaporation with exclusion of any solvent in the structure (Setzer et al., 1983). In addition, the structure of the dication [Ni(9S3)2]2+ has been crystallographically characterized using a number of different anions (Blake et al., 2007; Blake et al., 2001; Nishijo et al., 2003; Nishijo et al., 2004; Blake et al., 1992). Herein, we wish to report the structure of the coordination compound bis(1,4,7-trithiacyclononane)nickel(II)bistetrafluoroborate dinitromethane solvate to include with the previously reported [Ni(9S3)2]2+ complexes.
As can be seen in Figure 1, the title complex displays the expected hexakis (thioether) octahedral geometry around the NiII center where each 9S3 ligand is coordinated to the face of the octahedron. Interestingly, the title complex crystallizes as two crystallographically independent complex cations within the unit cell where each NiII cation lies at the inversion center (Figure 2). In addition, both the tetrafluoroborate anion and nitromethane solvate crystallize as two crystallographically independent anions and solvent molecules, respectively. Out of the seven crystallographically characterized [Ni(9S3)2]2+ complex cations this is the first example where the unit cell contains two crystallographically different complex cations. Packing within the monoclinic crystal lattice shows a face-centered array for the [Ni(9S3)2]2+ dication to give a total of four [Ni(9S3)2]2+ complex cations within the unit cell. Both the BF4- anions and the nitromethane solvate molecules occupy four locations on the face and four locations within the unit cell to give a total of eight BF4- anions and eight nitromethane solvate molecules. Thus, the molecular formula is [Ni(9S3)2][BF4]2.2CH3NO2.
Setzer et al. have published the structure of [Ni(9S3)2][BF4]2 that was crystallized from ethanol, and was solved in the same space group (P21/c) and approximately the same R1 (0.03) as the title compound (Setzer et al., 1983). However, there are several differences between the previously reported structure of the title complex crystallized from ethanol versus that reported herein from nitromethane. Most notably is the presence of two crystallographically different complex cations. This is likely due, at least in part, to differences in crystal packing in the two different solvents. Secondly, the incorporation of solvent in the crystal lattice is unique to this system, but not unprecedented for crystal growth of similar structures from nitromethane (Helm et al., 2006; Grant et al., 2005). Lastly, there is a difference in the tetrafluoroborate anions in the structures. In the original report (Setzer et al., 1983), no disorder was observed in the BF4- anions compared to the compound shown in Figure 2 where disorder in the B-F bonds along a C3 axis is observed. Again, this could be attributed to different crystal packing in the two different solvents; however, temperature effects cannot be discounted as data collection on the Bruker SMART X2S was done at 203 K.