metal-organic compounds
3,3′-Dimethyl-1,1′-(propane-1,3-diyl)diimidazol-1-ium bis(1,2-dicyanoethene-1,2-dithiolato-κ2S,S′)nickelate(II)
aDepartment of Chemistry, Nanjing Xiaozhuang College, Nanjing 210017, People's Republic of China, bSchool of Biochemical and Environmental Engineering, Nanjing Xiaozhuang College, Nanjing 210017, People's Republic of China, and cCollege of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China
*Correspondence e-mail: duanhaibao4660@163.com
In the title compound, (C11H18N4)[Ni(C4N2S2)2], the asymmetric contains one half-complex, with the cation placed on a twofold axis and the anion located on an inversion center. The NiII ion in the anion is coordinated by four S atoms of two maleonitriledithiolate ligands, and exhibits the expected square-planar coordination geometry.
Related literature
For the design of functional materials, see: Robertson & Cronin (2002). For near-infrared dyes, conducting, magnetic and non-linear optical materials, see: Nishijo et al. (2000); Ni et al. (2005). For related structures, see: Ni et al. (2004); Ren et al. (2004, 2008); Duan et al. (2010); For the synthesis of the title compound, see: Davison & Holm (1967); Yao et al. (2008).
Experimental
Crystal data
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Data collection: SMART (Bruker, 1999); cell SAINT (Bruker, 1999); 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.
Supporting information
10.1107/S1600536811027693/bh2362sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811027693/bh2362Isup2.hkl
All reagents and chemicals were purchased from commercial sources and used without further purification. The starting materials disodium maleonitriledithiolate and 1-methyl-3-(3-(1-methyl-imidazole-3-yl)propyl)-imidazolinium iodide were synthesized following the literature procedures (Davison & Holm, 1967; Yao et al., 2008). Disodium maleonitriledithiolate (456 mg, 2.5 mmol) and nickel chloride hexahydrate (297 mg, 1.25 mmol) were mixed under stirring in water (20 ml) at room temperature. Subsequently, a solution of 1-methyl-3-(3-(1-methyl-imidazole-3-yl)propyl)-imidazolinium iodide (1.5 mmol) in methanol (10 ml) was added to the mixture, and the red precipitate that immediately formed was filtered off, and washed with methanol. The crude product was recrystallized in acetone (20 ml) to give red block crystals.
The C-bound H atoms were placed in geometrically idealized positions with C—H bond lengths fixed to 0.97 (methylene CH2) 0.96 (methyl CH3), and 0.93 Å (aromatic CH), and refined as riding atoms. Isotropic displacement parameters of the H atom were set at Uiso(H) = 1.2Ueq(C) for methylene and aromatic H atoms, and Uiso(H) = 1.5Ueq(C) for methyl H atoms.
Data collection: SMART (Bruker, 1999); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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).Fig. 1. The molecular structure of the title compound, showing displacement ellipsoids at the 30% probability level. |
(C11H18N4)[Ni(C4N2S2)2] | Z = 4 |
Mr = 545.38 | F(000) = 1120.0 |
Monoclinic, C2/c | Dx = 1.508 Mg m−3 |
Hall symbol: -C 2yc | Mo Kα radiation, λ = 0.71073 Å |
a = 19.3683 (15) Å | µ = 1.18 mm−1 |
b = 7.3026 (6) Å | T = 293 K |
c = 17.5170 (14) Å | Block, red |
β = 104.167 (1)° | 0.4 × 0.3 × 0.3 mm |
V = 2402.2 (3) Å3 |
Bruker SMART CCD area-detector diffractometer | 2938 independent reflections |
Radiation source: fine-focus sealed tube | 2503 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.067 |
ϕ and ω scans | θmax = 28.3°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | h = −19→25 |
Tmin = 0.702, Tmax = 0.741 | k = −8→9 |
7551 measured reflections | l = −23→16 |
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) = 0.101 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0544P)2 + 0.2056P] where P = (Fo2 + 2Fc2)/3 |
2938 reflections | (Δ/σ)max < 0.001 |
147 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.68 e Å−3 |
(C11H18N4)[Ni(C4N2S2)2] | V = 2402.2 (3) Å3 |
Mr = 545.38 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 19.3683 (15) Å | µ = 1.18 mm−1 |
b = 7.3026 (6) Å | T = 293 K |
c = 17.5170 (14) Å | 0.4 × 0.3 × 0.3 mm |
β = 104.167 (1)° |
Bruker SMART CCD area-detector diffractometer | 2938 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | 2503 reflections with I > 2σ(I) |
Tmin = 0.702, Tmax = 0.741 | Rint = 0.067 |
7551 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.101 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.31 e Å−3 |
2938 reflections | Δρmin = −0.68 e Å−3 |
147 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Ni1 | 0.2500 | 0.7500 | 0.0000 | 0.03604 (12) | |
S1 | 0.34431 (2) | 0.65936 (7) | 0.08669 (3) | 0.04682 (15) | |
S2 | 0.18479 (2) | 0.72779 (7) | 0.08353 (3) | 0.04539 (14) | |
N1 | 0.40853 (10) | 0.5664 (3) | 0.29918 (11) | 0.0762 (6) | |
N2 | 0.19161 (11) | 0.6190 (3) | 0.28956 (11) | 0.0698 (5) | |
N3 | 0.61640 (10) | 0.7743 (2) | 1.00222 (10) | 0.0491 (4) | |
N4 | 0.54547 (9) | 0.8708 (2) | 0.89552 (10) | 0.0576 (4) | |
C1 | 0.36589 (10) | 0.5949 (3) | 0.24289 (11) | 0.0516 (4) | |
C2 | 0.31437 (9) | 0.6359 (2) | 0.17168 (10) | 0.0416 (4) | |
C3 | 0.24477 (9) | 0.6629 (2) | 0.17021 (10) | 0.0401 (4) | |
C4 | 0.21663 (10) | 0.6392 (3) | 0.23745 (11) | 0.0492 (4) | |
C5 | 0.61229 (10) | 0.8655 (3) | 0.93644 (11) | 0.0475 (4) | |
H5A | 0.6506 | 0.9180 | 0.9212 | 0.057* | |
C6 | 0.68163 (15) | 0.7392 (3) | 1.06347 (14) | 0.0661 (7) | |
H6A | 0.7213 | 0.7962 | 1.0491 | 0.099* | |
H6B | 0.6896 | 0.6096 | 1.0689 | 0.099* | |
H6C | 0.6767 | 0.7889 | 1.1126 | 0.099* | |
C7 | 0.55032 (15) | 0.7161 (4) | 1.00398 (16) | 0.0803 (8) | |
H7A | 0.5380 | 0.6474 | 1.0434 | 0.096* | |
C8 | 0.50654 (15) | 0.7773 (5) | 0.9379 (2) | 0.0919 (10) | |
H8A | 0.4575 | 0.7592 | 0.9231 | 0.110* | |
C9 | 0.52021 (13) | 0.9711 (3) | 0.82143 (13) | 0.0750 (7) | |
H9A | 0.5573 | 1.0547 | 0.8150 | 0.090* | |
H9B | 0.4792 | 1.0439 | 0.8248 | 0.090* | |
C10 | 0.5000 | 0.8508 (4) | 0.7500 | 0.0559 (7) | |
H10A | 0.4602 | 0.7731 | 0.7532 | 0.067* | 0.50 |
H10B | 0.5398 | 0.7731 | 0.7468 | 0.067* | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.03490 (18) | 0.03872 (19) | 0.03238 (19) | −0.00051 (11) | 0.00419 (13) | −0.00245 (11) |
S1 | 0.0380 (2) | 0.0625 (3) | 0.0377 (2) | 0.00491 (19) | 0.00505 (18) | 0.0005 (2) |
S2 | 0.0379 (2) | 0.0577 (3) | 0.0397 (3) | 0.00376 (18) | 0.00789 (19) | 0.00350 (19) |
N1 | 0.0665 (12) | 0.1072 (17) | 0.0468 (10) | 0.0188 (12) | −0.0018 (9) | 0.0070 (11) |
N2 | 0.0691 (11) | 0.0954 (14) | 0.0488 (10) | 0.0063 (11) | 0.0220 (9) | 0.0090 (10) |
N3 | 0.0537 (9) | 0.0483 (9) | 0.0413 (9) | −0.0086 (7) | 0.0039 (7) | −0.0020 (7) |
N4 | 0.0479 (9) | 0.0663 (10) | 0.0497 (9) | −0.0038 (8) | −0.0049 (7) | −0.0074 (8) |
C1 | 0.0493 (10) | 0.0627 (11) | 0.0406 (9) | 0.0054 (9) | 0.0065 (8) | −0.0019 (9) |
C2 | 0.0462 (9) | 0.0413 (8) | 0.0344 (8) | 0.0003 (7) | 0.0042 (7) | −0.0017 (7) |
C3 | 0.0459 (9) | 0.0382 (8) | 0.0346 (8) | −0.0023 (7) | 0.0069 (7) | −0.0022 (7) |
C4 | 0.0503 (10) | 0.0539 (10) | 0.0423 (10) | 0.0019 (8) | 0.0091 (8) | 0.0012 (8) |
C5 | 0.0454 (9) | 0.0498 (10) | 0.0423 (10) | −0.0046 (8) | 0.0012 (7) | 0.0019 (8) |
C6 | 0.0740 (15) | 0.0568 (13) | 0.0549 (14) | 0.0002 (10) | −0.0086 (12) | 0.0085 (9) |
C7 | 0.0686 (16) | 0.112 (2) | 0.0614 (15) | −0.0278 (15) | 0.0177 (13) | 0.0053 (14) |
C8 | 0.0446 (12) | 0.140 (3) | 0.087 (2) | −0.0210 (14) | 0.0079 (13) | 0.0053 (19) |
C9 | 0.0783 (15) | 0.0643 (13) | 0.0611 (13) | 0.0102 (12) | −0.0238 (12) | −0.0046 (11) |
C10 | 0.0481 (14) | 0.0592 (17) | 0.0525 (16) | 0.000 | −0.0027 (12) | 0.000 |
Ni1—S2i | 2.1603 (5) | C2—C3 | 1.356 (3) |
Ni1—S2 | 2.1603 (5) | C3—C4 | 1.424 (3) |
Ni1—S1 | 2.1732 (4) | C5—H5A | 0.9300 |
Ni1—S1i | 2.1732 (4) | C6—H6A | 0.9600 |
S1—C2 | 1.7334 (18) | C6—H6B | 0.9600 |
S2—C3 | 1.7369 (17) | C6—H6C | 0.9600 |
N1—C1 | 1.140 (2) | C7—C8 | 1.334 (4) |
N2—C4 | 1.143 (3) | C7—H7A | 0.9300 |
N3—C5 | 1.316 (2) | C8—H8A | 0.9300 |
N3—C7 | 1.356 (3) | C9—C10 | 1.500 (3) |
N3—C6 | 1.466 (3) | C9—H9A | 0.9700 |
N4—C5 | 1.318 (2) | C9—H9B | 0.9700 |
N4—C8 | 1.364 (4) | C10—C9ii | 1.500 (3) |
N4—C9 | 1.466 (3) | C10—H10A | 0.9700 |
C1—C2 | 1.426 (2) | C10—H10B | 0.9700 |
S2i—Ni1—S2 | 180.00 (3) | N3—C6—H6A | 109.5 |
S2i—Ni1—S1 | 88.018 (18) | N3—C6—H6B | 109.5 |
S2—Ni1—S1 | 91.983 (18) | H6A—C6—H6B | 109.5 |
S2i—Ni1—S1i | 91.983 (18) | N3—C6—H6C | 109.5 |
S2—Ni1—S1i | 88.017 (18) | H6A—C6—H6C | 109.5 |
S1—Ni1—S1i | 180.000 (17) | H6B—C6—H6C | 109.5 |
C2—S1—Ni1 | 103.27 (6) | C8—C7—N3 | 106.2 (2) |
C3—S2—Ni1 | 103.64 (6) | C8—C7—H7A | 126.9 |
C5—N3—C7 | 108.85 (19) | N3—C7—H7A | 126.9 |
C5—N3—C6 | 125.85 (19) | C7—C8—N4 | 108.8 (2) |
C7—N3—C6 | 125.3 (2) | C7—C8—H8A | 125.6 |
C5—N4—C8 | 106.8 (2) | N4—C8—H8A | 125.6 |
C5—N4—C9 | 124.5 (2) | N4—C9—C10 | 114.08 (19) |
C8—N4—C9 | 128.5 (2) | N4—C9—H9A | 108.7 |
N1—C1—C2 | 177.7 (2) | C10—C9—H9A | 108.7 |
C3—C2—C1 | 121.79 (17) | N4—C9—H9B | 108.7 |
C3—C2—S1 | 120.62 (13) | C10—C9—H9B | 108.7 |
C1—C2—S1 | 117.55 (14) | H9A—C9—H9B | 107.6 |
C2—C3—C4 | 123.12 (16) | C9—C10—C9ii | 108.3 (3) |
C2—C3—S2 | 120.34 (14) | C9—C10—H10A | 110.0 |
C4—C3—S2 | 116.53 (14) | C9ii—C10—H10A | 110.0 |
N2—C4—C3 | 177.4 (2) | C9—C10—H10B | 110.0 |
N3—C5—N4 | 109.39 (19) | C9ii—C10—H10B | 110.0 |
N3—C5—H5A | 125.3 | H10A—C10—H10B | 108.4 |
N4—C5—H5A | 125.3 |
Symmetry codes: (i) −x+1/2, −y+3/2, −z; (ii) −x+1, y, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | (C11H18N4)[Ni(C4N2S2)2] |
Mr | 545.38 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 293 |
a, b, c (Å) | 19.3683 (15), 7.3026 (6), 17.5170 (14) |
β (°) | 104.167 (1) |
V (Å3) | 2402.2 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.18 |
Crystal size (mm) | 0.4 × 0.3 × 0.3 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 1999) |
Tmin, Tmax | 0.702, 0.741 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7551, 2938, 2503 |
Rint | 0.067 |
(sin θ/λ)max (Å−1) | 0.666 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.101, 1.06 |
No. of reflections | 2938 |
No. of parameters | 147 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.68 |
Computer programs: SMART (Bruker, 1999), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors thank the Natural Science Foundation of High Learning Institutions of Abhui Province, China for financial support (grant Nos. KJ2009B275Z).
References
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Supramolecular chemistry and molecular crystal engineering, which is the planning and utilization of crystal-oriented syntheses for the bottom-up construction of functional molecular solids from molecules and ions, are powerful tools for the assembly of designed functional materials (Robertson & Cronin, 2002). The use of bis-1,2-dithiolene complexes of transition metals as building units in the construction of such molecule based materials has received extensive attention due to their potential applications in the areas of near-infrared (near-IR) dyes, conducting, magnetic and nonlinear optical materials (Nishijo et al., 2000; Ni et al., 2005). Herein we report the crystal structure of the title compound (Fig. 1), which belongs to this class of materials.
The compound crystallizes in monoclinic system, with one half of [Ni(mnt)2]2- dianion (mnt = maleonitriledithiolate) and one half of 3,3-dimethyl-1,1-(propane-1,3-diyl)diimidazol-1-ium dication in the asymmetric unit. The Ni center in the [Ni(mnt)2]2- anion is coordinated by four S atoms of two mnt2- ligands, and exhibits the expected square-planar coordination geometry. The bond lengths and angles in the anion are in good agreement with those observed in other [Ni(mnt)2]2- complexes (Ni et al., 2004; Ren et al., 2004, 2008; Duan et al., 2010).