metal-organic compounds
Bis[(E)-1-(3,4-dichlorobenzylideneamino)-4-methylpyridinium] bis(maleonitriledithiolato)nickelate(II)
aDepartment of Applied Chemistry, College of Sciences, Nanjing University of Technology, Nanjing 210009, People's Republic of China
*Correspondence e-mail: yaobq123@126.com
The 13H11Cl2N2)2[Ni(C4N2S2)2], contains one-half of a centrosymmetric [Ni(mnt)2] anion (where mnt is maleonitriledithiolate or 1,2-dicyano-1,2-ethylenedithiolate) and an (E)-1-(3,4-dichlorobenzylideneamino)-4-methylpyridinium cation. In the anion, the coordination around the Ni atom is a distorted square. In the cation, the aromatic rings are oriented at a dihedral angle of 7.81 (3)°. In the intermolecular C—H⋯N hydrogen bonds link the cations and anions. π–π Contacts between the nickel dithiolene and pyridine rings and between the benzene and pyridine rings, [centroid–centroid distances = 3.682 (3) and 3.643 (3) Å, respectively] may further stabilize the structure.
of the title compound, (CRelated literature
For general background, see: Robertson & Cronin (2002); Cassoux et al. (1991). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); 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/S1600536809001159/hk2608sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809001159/hk2608Isup2.hkl
For the preparation of the title compound, disodium maleonitriledithiolate (458 mg, 2.46 mmol) and nickel chloride hexahydrate (230 mg, 0.96 mmol) were mixed by stirring in EtOH (20 ml) at room temperature. Subsequently, a solution of (E)-1-(3,4-di-chlorobenzylideneamino)-4-methylpyridinium iodide (2143 mg, 2.46 mmol) in EtOH (10 ml) was added to the mixture, and the red precipitate immediately formed was filtered off, and washed with EtOH. The crude product was recrystallized in acetone (20 ml) to give black crystals. Crystals suitable for X-ray analysis were obtained by diffusing diethyl ether into the solution of the title compound in acetone for 8 d. FT-IR data (KBr pellets, cm-1): 2189 (s), 2920 (s),1631(s), 1485 (s), 1272 (s).
H atoms were positioned geometrically, with C-H = 0.93 and 0.96 Å for aromatic and methyl H, respectively, and constrained to ride on their parent atoms, with Uiso(H) = xUeq(C), where x = 1.5 for methyl H and x = 1.2 for aromatic H atoms.
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); 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).(C13H11Cl2N2)2[Ni(C4N2S2)2] | F(000) = 884 |
Mr = 871.37 | Dx = 1.567 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3049 reflections |
a = 10.7054 (10) Å | θ = 2.1–22.4° |
b = 13.8664 (13) Å | µ = 1.08 mm−1 |
c = 12.5043 (12) Å | T = 296 K |
β = 95.803 (1)° | Block, black |
V = 1846.7 (3) Å3 | 0.30 × 0.20 × 0.10 mm |
Z = 2 |
Bruker SMART CCD area-detector diffractometer | 4273 independent reflections |
Radiation source: fine-focus sealed tube | 3611 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
ϕ and ω scans | θmax = 27.6°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −13→13 |
Tmin = 0.729, Tmax = 0.895 | k = −18→18 |
15877 measured reflections | l = −13→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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.044P)2 + 0.5603P] where P = (Fo2 + 2Fc2)/3 |
4273 reflections | (Δ/σ)max = 0.001 |
232 parameters | Δρmax = 0.44 e Å−3 |
0 restraints | Δρmin = −0.37 e Å−3 |
(C13H11Cl2N2)2[Ni(C4N2S2)2] | V = 1846.7 (3) Å3 |
Mr = 871.37 | Z = 2 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.7054 (10) Å | µ = 1.08 mm−1 |
b = 13.8664 (13) Å | T = 296 K |
c = 12.5043 (12) Å | 0.30 × 0.20 × 0.10 mm |
β = 95.803 (1)° |
Bruker SMART CCD area-detector diffractometer | 4273 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 3611 reflections with I > 2σ(I) |
Tmin = 0.729, Tmax = 0.895 | Rint = 0.023 |
15877 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 0 restraints |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.44 e Å−3 |
4273 reflections | Δρmin = −0.37 e Å−3 |
232 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 | 0.5000 | 0.0000 | 0.5000 | 0.03598 (10) | |
Cl1 | 0.39412 (8) | 0.83968 (4) | 0.09607 (5) | 0.0739 (2) | |
Cl2 | 0.39194 (7) | 0.91419 (4) | −0.14262 (5) | 0.07117 (18) | |
S1 | 0.48602 (6) | 0.12888 (4) | 0.40218 (4) | 0.05280 (15) | |
S2 | 0.48684 (5) | 0.08311 (3) | 0.64679 (4) | 0.04583 (13) | |
N1 | 0.4615 (3) | 0.38988 (15) | 0.41030 (19) | 0.0831 (7) | |
N2 | 0.4392 (2) | 0.33492 (14) | 0.73857 (16) | 0.0663 (5) | |
N3 | 0.32151 (14) | 0.36297 (10) | 0.05354 (12) | 0.0393 (3) | |
N4 | 0.34563 (15) | 0.46221 (11) | 0.03826 (13) | 0.0449 (4) | |
C1 | 0.4621 (2) | 0.31630 (15) | 0.45077 (17) | 0.0549 (5) | |
C2 | 0.46864 (18) | 0.22060 (13) | 0.49411 (16) | 0.0446 (4) | |
C3 | 0.46740 (17) | 0.20093 (13) | 0.60048 (15) | 0.0407 (4) | |
C4 | 0.45178 (19) | 0.27570 (14) | 0.67685 (16) | 0.0477 (4) | |
C5 | 0.3192 (2) | 0.29411 (15) | −0.02278 (18) | 0.0543 (5) | |
H5A | 0.3343 | 0.3101 | −0.0925 | 0.065* | |
C6 | 0.2946 (2) | 0.20068 (15) | 0.0028 (2) | 0.0584 (5) | |
H6A | 0.2919 | 0.1537 | −0.0505 | 0.070* | |
C7 | 0.27374 (19) | 0.17458 (14) | 0.10617 (19) | 0.0517 (5) | |
C8 | 0.2804 (2) | 0.24667 (15) | 0.18250 (18) | 0.0543 (5) | |
H8A | 0.2682 | 0.2316 | 0.2532 | 0.065* | |
C9 | 0.3045 (2) | 0.34025 (14) | 0.15582 (16) | 0.0487 (4) | |
H9A | 0.3092 | 0.3880 | 0.2083 | 0.058* | |
C10 | 0.2459 (3) | 0.07236 (16) | 0.1355 (3) | 0.0768 (8) | |
H10A | 0.2449 | 0.0323 | 0.0728 | 0.115* | |
H10B | 0.1656 | 0.0695 | 0.1631 | 0.115* | |
H10C | 0.3096 | 0.0499 | 0.1893 | 0.115* | |
C11 | 0.32672 (19) | 0.49507 (13) | −0.05590 (17) | 0.0471 (4) | |
H11A | 0.3002 | 0.4544 | −0.1129 | 0.056* | |
C12 | 0.34690 (17) | 0.59789 (13) | −0.07481 (16) | 0.0428 (4) | |
C13 | 0.35970 (18) | 0.66292 (14) | 0.00916 (16) | 0.0457 (4) | |
H13A | 0.3585 | 0.6412 | 0.0794 | 0.055* | |
C14 | 0.37433 (18) | 0.76020 (14) | −0.01073 (16) | 0.0461 (4) | |
C15 | 0.37612 (18) | 0.79287 (14) | −0.11577 (17) | 0.0473 (4) | |
C16 | 0.3660 (2) | 0.72771 (16) | −0.19945 (17) | 0.0573 (5) | |
H16A | 0.3692 | 0.7493 | −0.2695 | 0.069* | |
C17 | 0.3511 (2) | 0.63062 (16) | −0.18005 (17) | 0.0553 (5) | |
H17A | 0.3440 | 0.5871 | −0.2369 | 0.066* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.04103 (18) | 0.02949 (16) | 0.03748 (18) | −0.00120 (12) | 0.00426 (12) | 0.00094 (12) |
Cl1 | 0.1235 (6) | 0.0405 (3) | 0.0601 (3) | 0.0083 (3) | 0.0212 (3) | −0.0033 (2) |
Cl2 | 0.0980 (5) | 0.0409 (3) | 0.0771 (4) | −0.0025 (3) | 0.0212 (3) | 0.0183 (3) |
S1 | 0.0855 (4) | 0.0343 (2) | 0.0391 (3) | 0.0037 (2) | 0.0086 (2) | 0.00337 (18) |
S2 | 0.0636 (3) | 0.0350 (2) | 0.0393 (2) | −0.0017 (2) | 0.0074 (2) | −0.00029 (18) |
N1 | 0.129 (2) | 0.0424 (11) | 0.0774 (15) | 0.0156 (12) | 0.0078 (14) | 0.0102 (10) |
N2 | 0.0909 (15) | 0.0513 (11) | 0.0586 (11) | 0.0040 (10) | 0.0163 (10) | −0.0105 (9) |
N3 | 0.0427 (8) | 0.0299 (7) | 0.0456 (8) | 0.0002 (6) | 0.0058 (6) | 0.0016 (6) |
N4 | 0.0546 (9) | 0.0300 (7) | 0.0506 (9) | −0.0035 (6) | 0.0072 (7) | 0.0025 (6) |
C1 | 0.0731 (14) | 0.0395 (10) | 0.0513 (12) | 0.0092 (9) | 0.0023 (10) | −0.0002 (9) |
C2 | 0.0484 (10) | 0.0343 (9) | 0.0507 (11) | 0.0029 (7) | 0.0038 (8) | 0.0006 (8) |
C3 | 0.0410 (9) | 0.0337 (8) | 0.0474 (10) | 0.0007 (7) | 0.0037 (7) | −0.0032 (7) |
C4 | 0.0551 (11) | 0.0401 (10) | 0.0486 (11) | 0.0005 (8) | 0.0083 (9) | −0.0012 (8) |
C5 | 0.0720 (14) | 0.0424 (10) | 0.0497 (11) | −0.0014 (9) | 0.0127 (10) | −0.0057 (9) |
C6 | 0.0685 (14) | 0.0383 (10) | 0.0690 (14) | −0.0025 (9) | 0.0088 (11) | −0.0111 (10) |
C7 | 0.0439 (10) | 0.0328 (9) | 0.0779 (15) | 0.0005 (7) | 0.0040 (10) | 0.0047 (9) |
C8 | 0.0662 (13) | 0.0413 (10) | 0.0564 (12) | 0.0021 (9) | 0.0112 (10) | 0.0100 (9) |
C9 | 0.0619 (12) | 0.0366 (9) | 0.0478 (11) | 0.0017 (8) | 0.0063 (9) | 0.0018 (8) |
C10 | 0.0816 (17) | 0.0339 (11) | 0.115 (2) | −0.0054 (10) | 0.0105 (16) | 0.0099 (12) |
C11 | 0.0536 (11) | 0.0383 (10) | 0.0484 (11) | −0.0039 (8) | 0.0008 (8) | 0.0031 (8) |
C12 | 0.0422 (9) | 0.0382 (9) | 0.0475 (10) | −0.0019 (7) | 0.0020 (8) | 0.0079 (8) |
C13 | 0.0533 (11) | 0.0405 (10) | 0.0443 (10) | 0.0052 (8) | 0.0106 (8) | 0.0083 (8) |
C14 | 0.0498 (11) | 0.0395 (9) | 0.0500 (11) | 0.0041 (8) | 0.0104 (8) | 0.0021 (8) |
C15 | 0.0481 (10) | 0.0377 (9) | 0.0567 (11) | −0.0013 (8) | 0.0075 (9) | 0.0123 (8) |
C16 | 0.0741 (14) | 0.0539 (12) | 0.0439 (11) | −0.0081 (10) | 0.0063 (10) | 0.0151 (9) |
C17 | 0.0728 (14) | 0.0482 (11) | 0.0441 (11) | −0.0076 (10) | 0.0020 (10) | 0.0040 (9) |
Ni1—S1 | 2.1622 (5) | C6—H6A | 0.9300 |
Ni1—S1i | 2.1622 (5) | C7—C8 | 1.379 (3) |
Ni1—S2i | 2.1838 (5) | C7—C10 | 1.501 (3) |
Ni1—S2 | 2.1838 (5) | C8—C9 | 1.371 (3) |
Cl1—C14 | 1.728 (2) | C8—H8A | 0.9300 |
Cl2—C15 | 1.7272 (19) | C9—H9A | 0.9300 |
S1—C2 | 1.737 (2) | C10—H10A | 0.9600 |
S2—C3 | 1.7388 (19) | C10—H10B | 0.9600 |
N1—C1 | 1.139 (3) | C10—H10C | 0.9600 |
N2—C4 | 1.144 (3) | C11—C12 | 1.465 (2) |
N3—C9 | 1.347 (3) | C11—H11A | 0.9300 |
N3—C5 | 1.349 (2) | C12—C13 | 1.380 (3) |
N3—N4 | 1.417 (2) | C12—C17 | 1.397 (3) |
N4—C11 | 1.260 (3) | C13—C14 | 1.383 (3) |
C1—C2 | 1.432 (3) | C13—H13A | 0.9300 |
C2—C3 | 1.359 (3) | C14—C15 | 1.391 (3) |
C3—C4 | 1.431 (3) | C15—C16 | 1.378 (3) |
C5—C6 | 1.366 (3) | C16—C17 | 1.380 (3) |
C5—H5A | 0.9300 | C16—H16A | 0.9300 |
C6—C7 | 1.383 (3) | C17—H17A | 0.9300 |
S1—Ni1—S1i | 180.0 | C7—C8—H8A | 119.5 |
S1—Ni1—S2i | 88.128 (19) | N3—C9—C8 | 119.95 (19) |
S1i—Ni1—S2i | 91.873 (19) | N3—C9—H9A | 120.0 |
S1—Ni1—S2 | 91.872 (19) | C8—C9—H9A | 120.0 |
S1i—Ni1—S2 | 88.128 (19) | C7—C10—H10A | 109.5 |
S2i—Ni1—S2 | 180.0 | C7—C10—H10B | 109.5 |
C2—S1—Ni1 | 103.69 (7) | H10A—C10—H10B | 109.5 |
C3—S2—Ni1 | 103.39 (6) | C7—C10—H10C | 109.5 |
C9—N3—C5 | 120.77 (17) | H10A—C10—H10C | 109.5 |
C9—N3—N4 | 113.53 (15) | H10B—C10—H10C | 109.5 |
C5—N3—N4 | 125.66 (16) | N4—C11—C12 | 119.38 (18) |
C11—N4—N3 | 117.59 (16) | N4—C11—H11A | 120.3 |
N1—C1—C2 | 175.0 (3) | C12—C11—H11A | 120.3 |
C3—C2—C1 | 123.45 (18) | C13—C12—C17 | 119.61 (18) |
C3—C2—S1 | 120.87 (14) | C13—C12—C11 | 121.19 (18) |
C1—C2—S1 | 115.62 (15) | C17—C12—C11 | 119.19 (19) |
C2—C3—C4 | 121.41 (17) | C12—C13—C14 | 120.30 (18) |
C2—C3—S2 | 120.11 (14) | C12—C13—H13A | 119.8 |
C4—C3—S2 | 118.47 (14) | C14—C13—H13A | 119.8 |
N2—C4—C3 | 179.4 (2) | C13—C14—C15 | 119.98 (19) |
N3—C5—C6 | 119.8 (2) | C13—C14—Cl1 | 119.36 (16) |
N3—C5—H5A | 120.1 | C15—C14—Cl1 | 120.64 (15) |
C6—C5—H5A | 120.1 | C16—C15—C14 | 119.72 (18) |
C5—C6—C7 | 121.3 (2) | C16—C15—Cl2 | 119.51 (16) |
C5—C6—H6A | 119.3 | C14—C15—Cl2 | 120.77 (16) |
C7—C6—H6A | 119.3 | C15—C16—C17 | 120.50 (19) |
C8—C7—C6 | 117.12 (18) | C15—C16—H16A | 119.8 |
C8—C7—C10 | 120.9 (2) | C17—C16—H16A | 119.8 |
C6—C7—C10 | 122.0 (2) | C16—C17—C12 | 119.9 (2) |
C9—C8—C7 | 121.0 (2) | C16—C17—H17A | 120.1 |
C9—C8—H8A | 119.5 | C12—C17—H17A | 120.1 |
Symmetry code: (i) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5A···N2ii | 0.93 | 2.51 | 3.413 (3) | 163 |
Symmetry code: (ii) x, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | (C13H11Cl2N2)2[Ni(C4N2S2)2] |
Mr | 871.37 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 10.7054 (10), 13.8664 (13), 12.5043 (12) |
β (°) | 95.803 (1) |
V (Å3) | 1846.7 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.08 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.729, 0.895 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15877, 4273, 3611 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.089, 1.08 |
No. of reflections | 4273 |
No. of parameters | 232 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.44, −0.37 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Ni1—S1 | 2.1622 (5) | Ni1—S2 | 2.1838 (5) |
S1—Ni1—S2i | 88.128 (19) | S1—Ni1—S2 | 91.872 (19) |
Symmetry code: (i) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5A···N2ii | 0.93 | 2.51 | 3.413 (3) | 163 |
Symmetry code: (ii) x, y, z−1. |
Acknowledgements
The authors thank the Science and Technology Department of Jiangsu Province and the Natural Science Foundation of China for financial support (grant No. 10774076).
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bruker (2000). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cassoux, P., Valade, L., Kobayashi, H., Kobayashi, A., Clark, R. A. & Underhill, A. E. (1991). Coord. Chem. Rev. 110, 115–160. CrossRef CAS Web of Science Google Scholar
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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.
Square-planar M[dithiolene]2 complexes have attracted extensive interests in the areas of conducting and magnetic materials, dyes, non-linear optics and catalysis (Robertson et al., 2002; Cassoux et al., 1991). We report herein the crystal structure of the title compound.
The asymmetric unit of the title compound (Fig. 1) contains one-half of centrosymmetric [Ni(mnt)2] (where mnt is maleonitriledithiolate) anion and a (E)-1-(3,4-di-chlorobenzylideneamino)-4-methylpyridinium cation. In the anion, the coordination around the Ni atom is a distorted square (Table 1). The bond lengths (Allen et al., 1987) and angles are within normal ranges. Rings A (Ni1/S1/S2/C2/C3), B (N3/C5-C9) and C (C12-C17) are, of course, planar and they are oriented at dihedral angles of A/B = 16.69 (3)°, A/C = 13.47 (3)° and B/C = 7.81 (3)°.
In the crystal structure, intermolecular C-H···N hydrogen bonds (Table 2) link the cations and anions (Fig. 2), in which they may be effective in the stabilization of the structure. The π-π contacts between the nickel dithiolene and the pyridine rings and the benzene and the pyridine rings, Cg1—Cg3i and Cg3—Cg4ii [symmetry codes: (i) 1/2 + x, 1/2 - y, 1/2 + z; (ii) 1 - x, 1 - y, -z, where Cg1, Cg3 and Cg4 are centroids of the rings A (Ni1/S1/S2/C2/C3), B (N3/C5-C9) and C (C12-C17), respectively] may further stabilize the structure, with centroid-centroid distances of 3.682 (3) Å and 3.643 (3) Å.