metal-organic compounds
[N,N,N′,N′-Tetrakis(benzimidazol-2-ylmethyl)cyclohexane-1,2-diamine]nickel(II) dinitrate dihydrate
aDepartment of Chemical and Biological Science, Xiangfan University, Xiangfan 441053, People's Republic of China
*Correspondence e-mail: blueice8250@yahoo.com.cn
In the title compound, [Ni(C38H38N10)](NO3)2·2H2O, the NiII ion is located on a crystallographic twofold rotation axis and is in a distorted octahedral coordination environment. The is stablized by intermolecular N—H⋯O and C—H⋯O hydrogen bonds, and weak C—H⋯π interactions. The O atoms of the unique nitrate ion are disordered over two sites with occupancies of 0.63 (1) and 0.37 (1). In addition, the O atom of the unique solvent water molecule is disorded over two sites with equal occupancies.
Related literature
For background information, see: Oki et al. (1996); Hendriks et al. (1982); Main (1992); Zhao et al. (2005). For the structure of the free ligand of the title compound, see: Li et al. (2005).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2007); cell SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
10.1107/S1600536808031553/lh2699sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808031553/lh2699Isup2.hkl
All reagents and solvents were used as obtained without further purification. The ligand CTB was prepared according to literature methods (Hendriks et al., 1982). Compound (I) was synthesized by refluxing stoichiometric quantities (1:1 molar ratio) of CTB (0.64 g, 1 mmol) and nickel(II) dinitrate hexahydrate (0.29 g, 1 mmol) in 95% ethanol (30 ml) at 333 K for 6 h. The solution was cooled to room temperature, filtered and evaporated to obtain the product (yield 72%). Crystals of (I) were grown from an ethanol solution by slow evaporation.
In (I), the nitrate O atoms are disordered over two positions with the final refined occupancies of 0.63 (1):0.37 (1). Water atom O4 is also disordered over two positions with both the occupancies being set to 0.5. H atoms bonded to water molecules were not located and were not included in the
but are included in the All H atoms (except for H3A) were included in geometrical positions with C—H=0.97 Å (methylene), 0.93Å (aromatic), 0.86Å (imine) and all the Uisovalues were set 1.2 times of their carrier atoms. The positional parameters of atom H3A were refined.Data collection: SMART (Bruker, 2007); cell
SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. The nitrate anions, water molecules and H atoms are omitted for clarity [symmetry code: (a) -x, y, -z+3/2]. | |
Fig. 2. Part of the crystal structure showing the linking of molecules by H-bonding and weak C—H···π interactions as dashed lines. |
[Ni(C38H38N10)](NO3)2·2H2O | F(000) = 1784 |
Mr = 853.55 | Dx = 1.447 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2061 reflections |
a = 15.3395 (16) Å | θ = 2.4–22.1° |
b = 13.1695 (14) Å | µ = 0.57 mm−1 |
c = 19.606 (2) Å | T = 292 K |
β = 98.501 (2)° | Plate, purple |
V = 3917.2 (7) Å3 | 0.32 × 0.20 × 0.10 mm |
Z = 4 |
Bruker SMART APEX CCD diffractometer | 3847 independent reflections |
Radiation source: fine-focus sealed tube | 2618 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.074 |
ϕ and ω scans | θmax = 26.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −18→17 |
Tmin = 0.840, Tmax = 0.946 | k = −10→16 |
10917 measured reflections | l = −24→24 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.133 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.95 | w = 1/[σ2(Fo2) + (0.0618P)2] where P = (Fo2 + 2Fc2)/3 |
3847 reflections | (Δ/σ)max = 0.001 |
303 parameters | Δρmax = 0.43 e Å−3 |
65 restraints | Δρmin = −0.34 e Å−3 |
[Ni(C38H38N10)](NO3)2·2H2O | V = 3917.2 (7) Å3 |
Mr = 853.55 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 15.3395 (16) Å | µ = 0.57 mm−1 |
b = 13.1695 (14) Å | T = 292 K |
c = 19.606 (2) Å | 0.32 × 0.20 × 0.10 mm |
β = 98.501 (2)° |
Bruker SMART APEX CCD diffractometer | 3847 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2618 reflections with I > 2σ(I) |
Tmin = 0.840, Tmax = 0.946 | Rint = 0.074 |
10917 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 65 restraints |
wR(F2) = 0.133 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.95 | Δρmax = 0.43 e Å−3 |
3847 reflections | Δρmin = −0.34 e Å−3 |
303 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 | 0.0000 | 0.06922 (5) | 0.7500 | 0.0383 (2) | |
N1 | 0.08499 (16) | 0.1952 (2) | 0.79130 (13) | 0.0411 (7) | |
N2 | 0.03564 (16) | 0.0758 (2) | 0.65276 (12) | 0.0420 (7) | |
N3 | 0.01367 (17) | 0.1461 (2) | 0.54912 (12) | 0.0461 (7) | |
H3 | −0.0083 | 0.1852 | 0.5158 | 0.055* | |
N4 | −0.11459 (17) | −0.0078 (2) | 0.71196 (12) | 0.0419 (7) | |
N5 | −0.25584 (18) | 0.0113 (3) | 0.66910 (14) | 0.0552 (8) | |
H5 | −0.3063 | 0.0401 | 0.6586 | 0.066* | |
N6 | 0.8994 (3) | 0.3077 (5) | 0.4093 (3) | 0.139 (2) | |
O1 | 0.9736 (6) | 0.2879 (13) | 0.4445 (5) | 0.268 (8) | 0.630 (9) |
O2 | 0.8880 (3) | 0.3273 (6) | 0.3471 (3) | 0.119 (3) | 0.630 (9) |
O3 | 0.8392 (5) | 0.3165 (5) | 0.4456 (4) | 0.142 (3) | 0.630 (9) |
O1' | 0.9621 (5) | 0.2465 (7) | 0.4281 (4) | 0.058 (3) | 0.370 (9) |
O2' | 0.9055 (8) | 0.4029 (8) | 0.4173 (8) | 0.161 (7) | 0.370 (9) |
O3' | 0.8270 (19) | 0.2712 (14) | 0.377 (3) | 0.29 (12)* | 0.370 (9) |
O4 | 0.0215 (8) | 0.4055 (10) | 0.9433 (5) | 0.169 (6) | 0.50 (2) |
O4' | 0.0237 (12) | 0.491 (2) | 0.9646 (10) | 0.279 (12) | 0.50 (2) |
C1 | 0.0479 (3) | 0.4797 (3) | 0.7444 (2) | 0.0738 (12) | |
H1A | 0.0765 | 0.5412 | 0.7635 | 0.089* | |
H1B | 0.0512 | 0.4784 | 0.6954 | 0.089* | |
C2 | 0.0954 (2) | 0.3874 (3) | 0.7790 (2) | 0.0609 (10) | |
H2A | 0.1560 | 0.3873 | 0.7704 | 0.073* | |
H2B | 0.0958 | 0.3916 | 0.8284 | 0.073* | |
C3 | 0.0508 (2) | 0.2889 (3) | 0.75205 (18) | 0.0454 (8) | |
H3A | 0.063 (2) | 0.280 (2) | 0.7048 (16) | 0.054* | |
C4 | 0.0837 (2) | 0.2029 (3) | 0.86709 (16) | 0.0494 (9) | |
H4A | 0.1394 | 0.1790 | 0.8917 | 0.059* | |
H4B | 0.0767 | 0.2734 | 0.8795 | 0.059* | |
C5 | 0.1735 (2) | 0.1638 (3) | 0.77788 (18) | 0.0492 (9) | |
H5A | 0.2189 | 0.2039 | 0.8052 | 0.059* | |
H5B | 0.1787 | 0.1722 | 0.7295 | 0.059* | |
C6 | −0.0106 (2) | 0.1420 (3) | 0.61190 (15) | 0.0412 (8) | |
C7 | 0.0944 (2) | 0.0319 (3) | 0.61274 (15) | 0.0412 (8) | |
C8 | 0.1581 (2) | −0.0419 (3) | 0.62782 (19) | 0.0570 (10) | |
H8 | 0.1678 | −0.0735 | 0.6707 | 0.068* | |
C9 | 0.2069 (3) | −0.0668 (3) | 0.5766 (2) | 0.0644 (11) | |
H9 | 0.2502 | −0.1165 | 0.5852 | 0.077* | |
C10 | 0.1936 (3) | −0.0204 (3) | 0.51282 (19) | 0.0658 (11) | |
H10 | 0.2289 | −0.0386 | 0.4801 | 0.079* | |
C11 | 0.1299 (2) | 0.0515 (3) | 0.49675 (17) | 0.0561 (10) | |
H11 | 0.1204 | 0.0823 | 0.4536 | 0.067* | |
C12 | 0.0804 (2) | 0.0764 (3) | 0.54747 (15) | 0.0441 (8) | |
C13 | −0.1819 (2) | 0.0548 (3) | 0.70208 (16) | 0.0453 (8) | |
C14 | −0.2356 (2) | −0.0880 (3) | 0.65533 (18) | 0.0546 (10) | |
C15 | −0.2841 (3) | −0.1652 (4) | 0.6196 (2) | 0.0793 (14) | |
H15 | −0.3432 | −0.1566 | 0.6015 | 0.095* | |
C16 | −0.2408 (3) | −0.2551 (4) | 0.6122 (2) | 0.0862 (15) | |
H16 | −0.2710 | −0.3084 | 0.5883 | 0.103* | |
C17 | −0.1518 (3) | −0.2677 (3) | 0.6401 (2) | 0.0800 (14) | |
H17 | −0.1248 | −0.3298 | 0.6346 | 0.096* | |
C18 | −0.1031 (3) | −0.1913 (3) | 0.67524 (18) | 0.0601 (10) | |
H18 | −0.0439 | −0.2002 | 0.6931 | 0.072* | |
C19 | −0.1463 (2) | −0.1002 (3) | 0.68280 (16) | 0.0468 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.0387 (4) | 0.0453 (4) | 0.0307 (3) | 0.000 | 0.0044 (2) | 0.000 |
N1 | 0.0380 (15) | 0.0490 (17) | 0.0366 (14) | −0.0011 (13) | 0.0062 (11) | 0.0024 (13) |
N2 | 0.0414 (15) | 0.0507 (17) | 0.0342 (14) | 0.0041 (14) | 0.0066 (11) | 0.0015 (14) |
N3 | 0.0536 (17) | 0.0550 (18) | 0.0292 (14) | 0.0030 (15) | 0.0044 (12) | 0.0085 (13) |
N4 | 0.0433 (16) | 0.0469 (17) | 0.0347 (15) | −0.0039 (14) | 0.0028 (12) | −0.0051 (13) |
N5 | 0.0393 (17) | 0.071 (2) | 0.0544 (19) | −0.0096 (16) | 0.0027 (14) | 0.0030 (17) |
N6 | 0.087 (4) | 0.119 (5) | 0.203 (8) | 0.000 (4) | −0.007 (5) | 0.038 (5) |
O1 | 0.179 (10) | 0.317 (15) | 0.290 (14) | 0.021 (10) | −0.025 (9) | 0.206 (12) |
O2 | 0.079 (4) | 0.176 (7) | 0.097 (4) | 0.031 (4) | −0.003 (3) | 0.091 (5) |
O3 | 0.127 (6) | 0.125 (6) | 0.191 (7) | 0.023 (5) | 0.082 (5) | −0.025 (5) |
O1' | 0.052 (5) | 0.076 (6) | 0.044 (4) | 0.027 (4) | 0.005 (3) | 0.023 (4) |
O2' | 0.115 (9) | 0.170 (13) | 0.184 (13) | 0.027 (9) | −0.025 (8) | 0.000 (10) |
O4 | 0.239 (11) | 0.123 (10) | 0.149 (8) | 0.023 (7) | 0.043 (7) | −0.076 (6) |
O4' | 0.311 (17) | 0.28 (2) | 0.247 (17) | 0.064 (15) | 0.042 (12) | 0.007 (16) |
C1 | 0.084 (3) | 0.050 (2) | 0.088 (3) | −0.011 (2) | 0.013 (3) | −0.001 (2) |
C2 | 0.061 (2) | 0.053 (2) | 0.069 (3) | −0.011 (2) | 0.012 (2) | −0.003 (2) |
C3 | 0.0481 (19) | 0.045 (2) | 0.0440 (19) | −0.0006 (17) | 0.0101 (16) | 0.0002 (17) |
C4 | 0.047 (2) | 0.059 (2) | 0.0403 (19) | −0.0071 (18) | 0.0007 (15) | −0.0039 (17) |
C5 | 0.0388 (19) | 0.058 (2) | 0.050 (2) | −0.0037 (17) | 0.0064 (15) | 0.0022 (18) |
C6 | 0.0418 (18) | 0.047 (2) | 0.0339 (17) | −0.0018 (16) | 0.0043 (14) | −0.0007 (16) |
C7 | 0.0434 (18) | 0.047 (2) | 0.0335 (17) | −0.0016 (16) | 0.0075 (14) | −0.0021 (15) |
C8 | 0.060 (2) | 0.063 (3) | 0.049 (2) | 0.013 (2) | 0.0106 (18) | 0.0008 (19) |
C9 | 0.063 (2) | 0.073 (3) | 0.059 (2) | 0.017 (2) | 0.0133 (19) | −0.008 (2) |
C10 | 0.060 (3) | 0.094 (3) | 0.047 (2) | −0.002 (2) | 0.0188 (19) | −0.017 (2) |
C11 | 0.059 (2) | 0.075 (3) | 0.0358 (18) | −0.004 (2) | 0.0118 (17) | −0.0019 (19) |
C12 | 0.0461 (19) | 0.051 (2) | 0.0345 (17) | −0.0066 (18) | 0.0051 (14) | −0.0027 (16) |
C13 | 0.0402 (19) | 0.059 (2) | 0.0372 (18) | −0.0065 (18) | 0.0069 (14) | 0.0005 (17) |
C14 | 0.052 (2) | 0.068 (3) | 0.044 (2) | −0.016 (2) | 0.0081 (17) | 0.0011 (19) |
C15 | 0.073 (3) | 0.094 (4) | 0.069 (3) | −0.042 (3) | 0.005 (2) | −0.005 (3) |
C16 | 0.105 (4) | 0.079 (4) | 0.073 (3) | −0.048 (3) | 0.010 (3) | −0.014 (3) |
C17 | 0.121 (4) | 0.055 (3) | 0.067 (3) | −0.024 (3) | 0.023 (3) | −0.009 (2) |
C18 | 0.076 (3) | 0.058 (3) | 0.046 (2) | −0.008 (2) | 0.0063 (19) | −0.0029 (19) |
C19 | 0.057 (2) | 0.053 (2) | 0.0319 (17) | −0.0085 (18) | 0.0091 (15) | 0.0018 (16) |
Ni1—N2 | 2.061 (2) | C2—H2B | 0.9700 |
Ni1—N2i | 2.062 (2) | C3—C3i | 1.549 (6) |
Ni1—N4 | 2.071 (3) | C3—H3A | 0.98 (3) |
Ni1—N4i | 2.071 (3) | C4—C6i | 1.485 (4) |
Ni1—N1i | 2.190 (3) | C4—H4A | 0.9700 |
Ni1—N1 | 2.190 (3) | C4—H4B | 0.9700 |
N1—C5 | 1.479 (4) | C5—C13i | 1.489 (5) |
N1—C4 | 1.493 (4) | C5—H5A | 0.9700 |
N1—C3 | 1.506 (4) | C5—H5B | 0.9700 |
N2—C6 | 1.318 (4) | C6—C4i | 1.485 (4) |
N2—C7 | 1.404 (4) | C7—C8 | 1.379 (5) |
N3—C6 | 1.339 (4) | C7—C12 | 1.395 (4) |
N3—C12 | 1.378 (4) | C8—C9 | 1.378 (5) |
N3—H3 | 0.8600 | C8—H8 | 0.9300 |
N4—C13 | 1.313 (4) | C9—C10 | 1.378 (5) |
N4—C19 | 1.400 (4) | C9—H9 | 0.9300 |
N5—C13 | 1.348 (4) | C10—C11 | 1.364 (5) |
N5—C14 | 1.379 (5) | C10—H10 | 0.9300 |
N5—H5 | 0.8600 | C11—C12 | 1.378 (4) |
N6—O2 | 1.233 (6) | C11—H11 | 0.9300 |
N6—O3 | 1.252 (6) | C13—C5i | 1.489 (5) |
N6—O2' | 1.265 (8) | C14—C15 | 1.387 (5) |
N6—O1' | 1.267 (7) | C14—C19 | 1.405 (5) |
N6—O1 | 1.268 (7) | C15—C16 | 1.375 (7) |
N6—O3' | 1.286 (9) | C15—H15 | 0.9300 |
O4'—O4'ii | 1.68 (4) | C16—C17 | 1.403 (6) |
C1—C1i | 1.519 (8) | C16—H16 | 0.9300 |
C1—C2 | 1.524 (5) | C17—C18 | 1.376 (5) |
C1—H1A | 0.9700 | C17—H17 | 0.9300 |
C1—H1B | 0.9700 | C18—C19 | 1.389 (5) |
C2—C3 | 1.524 (5) | C18—H18 | 0.9300 |
C2—H2A | 0.9700 | ||
N2—Ni1—N2i | 175.20 (15) | C2—C3—C3i | 114.5 (2) |
N2—Ni1—N4 | 90.83 (10) | N1—C3—H3A | 106.6 (19) |
N2i—Ni1—N4 | 91.53 (10) | C2—C3—H3A | 106.6 (19) |
N2—Ni1—N4i | 91.53 (10) | C3i—C3—H3A | 106.6 (19) |
N2i—Ni1—N4i | 90.82 (10) | C6i—C4—N1 | 111.2 (3) |
N4—Ni1—N4i | 121.31 (16) | C6i—C4—H4A | 109.4 |
N2—Ni1—N1i | 81.44 (10) | N1—C4—H4A | 109.4 |
N2i—Ni1—N1i | 94.90 (10) | C6i—C4—H4B | 109.4 |
N4—Ni1—N1i | 79.11 (10) | N1—C4—H4B | 109.4 |
N4i—Ni1—N1i | 158.69 (11) | H4A—C4—H4B | 108.0 |
N2—Ni1—N1 | 94.90 (10) | N1—C5—C13i | 105.6 (3) |
N2i—Ni1—N1 | 81.43 (10) | N1—C5—H5A | 110.6 |
N4—Ni1—N1 | 158.69 (10) | C13i—C5—H5A | 110.6 |
N4i—Ni1—N1 | 79.11 (10) | N1—C5—H5B | 110.6 |
N1i—Ni1—N1 | 81.47 (14) | C13i—C5—H5B | 110.6 |
C5—N1—C4 | 110.1 (2) | H5A—C5—H5B | 108.8 |
C5—N1—C3 | 113.4 (2) | N2—C6—N3 | 112.8 (3) |
C4—N1—C3 | 113.5 (3) | N2—C6—C4i | 123.3 (3) |
C5—N1—Ni1 | 103.5 (2) | N3—C6—C4i | 123.8 (3) |
C4—N1—Ni1 | 108.93 (19) | C8—C7—C12 | 120.1 (3) |
C3—N1—Ni1 | 106.76 (18) | C8—C7—N2 | 131.6 (3) |
C6—N2—C7 | 105.4 (3) | C12—C7—N2 | 108.3 (3) |
C6—N2—Ni1 | 113.4 (2) | C9—C8—C7 | 117.1 (3) |
C7—N2—Ni1 | 141.2 (2) | C9—C8—H8 | 121.5 |
C6—N3—C12 | 107.6 (3) | C7—C8—H8 | 121.5 |
C6—N3—H3 | 126.2 | C8—C9—C10 | 122.2 (4) |
C12—N3—H3 | 126.2 | C8—C9—H9 | 118.9 |
C13—N4—C19 | 105.5 (3) | C10—C9—H9 | 118.9 |
C13—N4—Ni1 | 110.6 (2) | C11—C10—C9 | 121.4 (3) |
C19—N4—Ni1 | 142.9 (2) | C11—C10—H10 | 119.3 |
C13—N5—C14 | 107.4 (3) | C9—C10—H10 | 119.3 |
C13—N5—H5 | 126.3 | C10—C11—C12 | 116.8 (3) |
C14—N5—H5 | 126.3 | C10—C11—H11 | 121.6 |
O2—N6—O3 | 122.3 (5) | C12—C11—H11 | 121.6 |
O2—N6—O2' | 85.0 (9) | C11—C12—N3 | 131.8 (3) |
O3—N6—O2' | 83.4 (9) | C11—C12—C7 | 122.4 (3) |
O2—N6—O1' | 114.3 (7) | N3—C12—C7 | 105.8 (3) |
O3—N6—O1' | 119.1 (7) | N4—C13—N5 | 113.0 (3) |
O2'—N6—O1' | 123.7 (6) | N4—C13—C5i | 122.1 (3) |
O2—N6—O1 | 124.5 (6) | N5—C13—C5i | 124.8 (3) |
O3—N6—O1 | 112.8 (6) | N5—C14—C15 | 132.4 (4) |
O2'—N6—O1 | 95.3 (11) | N5—C14—C19 | 105.5 (3) |
O2'—N6—O3' | 118.3 (7) | C15—C14—C19 | 122.0 (4) |
O1'—N6—O3' | 117.9 (7) | C16—C15—C14 | 116.9 (4) |
O1—N6—O3' | 146.2 (13) | C16—C15—H15 | 121.5 |
C1i—C1—C2 | 110.1 (3) | C14—C15—H15 | 121.5 |
C1i—C1—H1A | 109.6 | C15—C16—C17 | 121.2 (5) |
C2—C1—H1A | 109.6 | C15—C16—H16 | 119.4 |
C1i—C1—H1B | 109.6 | C17—C16—H16 | 119.4 |
C2—C1—H1B | 109.6 | C18—C17—C16 | 122.3 (5) |
H1A—C1—H1B | 108.1 | C18—C17—H17 | 118.9 |
C3—C2—C1 | 111.4 (3) | C16—C17—H17 | 118.9 |
C3—C2—H2A | 109.4 | C17—C18—C19 | 116.9 (4) |
C1—C2—H2A | 109.4 | C17—C18—H18 | 121.6 |
C3—C2—H2B | 109.4 | C19—C18—H18 | 121.6 |
C1—C2—H2B | 109.4 | C18—C19—N4 | 130.6 (3) |
H2A—C2—H2B | 108.0 | C18—C19—C14 | 120.8 (4) |
N1—C3—C2 | 114.5 (3) | N4—C19—C14 | 108.5 (3) |
N1—C3—C3i | 107.3 (2) | ||
N2—Ni1—N1—C5 | −55.5 (2) | Ni1—N1—C5—C13i | −44.1 (3) |
N2i—Ni1—N1—C5 | 127.6 (2) | C7—N2—C6—N3 | −0.9 (4) |
N4—Ni1—N1—C5 | −160.6 (2) | Ni1—N2—C6—N3 | 179.5 (2) |
N4i—Ni1—N1—C5 | 35.10 (19) | C7—N2—C6—C4i | 177.3 (3) |
N1i—Ni1—N1—C5 | −136.1 (2) | Ni1—N2—C6—C4i | −2.3 (4) |
N2—Ni1—N1—C4 | −172.7 (2) | C12—N3—C6—N2 | 0.9 (4) |
N2i—Ni1—N1—C4 | 10.5 (2) | C12—N3—C6—C4i | −177.3 (3) |
N4—Ni1—N1—C4 | 82.3 (3) | C6—N2—C7—C8 | −179.7 (4) |
N4i—Ni1—N1—C4 | −82.0 (2) | Ni1—N2—C7—C8 | −0.2 (6) |
N1i—Ni1—N1—C4 | 106.8 (2) | C6—N2—C7—C12 | 0.5 (4) |
N2—Ni1—N1—C3 | 64.4 (2) | Ni1—N2—C7—C12 | 180.0 (3) |
N2i—Ni1—N1—C3 | −112.4 (2) | C12—C7—C8—C9 | 1.3 (5) |
N4—Ni1—N1—C3 | −40.6 (3) | N2—C7—C8—C9 | −178.5 (3) |
N4i—Ni1—N1—C3 | 155.1 (2) | C7—C8—C9—C10 | 0.3 (6) |
N1i—Ni1—N1—C3 | −16.12 (14) | C8—C9—C10—C11 | −1.3 (6) |
N4—Ni1—N2—C6 | 74.0 (2) | C9—C10—C11—C12 | 0.8 (6) |
N4i—Ni1—N2—C6 | −164.6 (2) | C10—C11—C12—N3 | 178.2 (4) |
N1i—Ni1—N2—C6 | −4.9 (2) | C10—C11—C12—C7 | 0.8 (5) |
N1—Ni1—N2—C6 | −85.4 (2) | C6—N3—C12—C11 | −178.2 (4) |
N4—Ni1—N2—C7 | −105.4 (3) | C6—N3—C12—C7 | −0.5 (4) |
N4i—Ni1—N2—C7 | 15.9 (3) | C8—C7—C12—C11 | −1.9 (5) |
N1i—Ni1—N2—C7 | 175.7 (4) | N2—C7—C12—C11 | 178.0 (3) |
N1—Ni1—N2—C7 | 95.1 (3) | C8—C7—C12—N3 | −179.8 (3) |
N2—Ni1—N4—C13 | −98.7 (2) | N2—C7—C12—N3 | 0.0 (4) |
N2i—Ni1—N4—C13 | 77.1 (2) | C19—N4—C13—N5 | 0.4 (4) |
N4i—Ni1—N4—C13 | 169.0 (2) | Ni1—N4—C13—N5 | 171.9 (2) |
N1i—Ni1—N4—C13 | −17.6 (2) | C19—N4—C13—C5i | −176.2 (3) |
N1—Ni1—N4—C13 | 7.0 (4) | Ni1—N4—C13—C5i | −4.6 (4) |
N2—Ni1—N4—C19 | 67.7 (3) | C14—N5—C13—N4 | −0.7 (4) |
N2i—Ni1—N4—C19 | −116.5 (3) | C14—N5—C13—C5i | 175.7 (3) |
N4i—Ni1—N4—C19 | −24.6 (3) | C13—N5—C14—C15 | −175.8 (4) |
N1i—Ni1—N4—C19 | 148.8 (3) | C13—N5—C14—C19 | 0.7 (4) |
N1—Ni1—N4—C19 | 173.5 (3) | N5—C14—C15—C16 | 176.1 (4) |
C1i—C1—C2—C3 | 57.5 (5) | C19—C14—C15—C16 | 0.1 (6) |
C5—N1—C3—C2 | −73.2 (4) | C14—C15—C16—C17 | 0.4 (6) |
C4—N1—C3—C2 | 53.5 (4) | C15—C16—C17—C18 | −0.8 (7) |
Ni1—N1—C3—C2 | 173.5 (2) | C16—C17—C18—C19 | 0.7 (6) |
C5—N1—C3—C3i | 158.5 (3) | C17—C18—C19—N4 | −176.0 (3) |
C4—N1—C3—C3i | −74.8 (3) | C17—C18—C19—C14 | −0.1 (5) |
Ni1—N1—C3—C3i | 45.2 (3) | C13—N4—C19—C18 | 176.4 (3) |
C1—C2—C3—N1 | −171.0 (3) | Ni1—N4—C19—C18 | 9.6 (6) |
C1—C2—C3—C3i | −46.4 (5) | C13—N4—C19—C14 | 0.1 (3) |
C5—N1—C4—C6i | −126.7 (3) | Ni1—N4—C19—C14 | −166.7 (3) |
C3—N1—C4—C6i | 104.9 (3) | N5—C14—C19—C18 | −177.2 (3) |
Ni1—N1—C4—C6i | −13.8 (3) | C15—C14—C19—C18 | −0.3 (5) |
C4—N1—C5—C13i | 72.2 (3) | N5—C14—C19—N4 | −0.5 (4) |
C3—N1—C5—C13i | −159.4 (3) | C15—C14—C19—N4 | 176.5 (3) |
Symmetry codes: (i) −x, y, −z+3/2; (ii) −x, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O1iii | 0.86 | 1.94 | 2.774 (10) | 165 |
N5—H5···O2iv | 0.86 | 2.14 | 2.923 (7) | 151 |
C4—H4B···O4 | 0.97 | 2.37 | 3.268 (12) | 154 |
C11—H11···Cg1v | 0.93 | 2.73 | 3.542 | 147 |
C16—H16···Cg2vi | 0.93 | 2.79 | 3.680 | 160 |
Symmetry codes: (iii) x−1, y, z; (iv) −x+1/2, −y+1/2, −z+1; (v) x+1/2, y+1/2, z+1; (vi) −x−1, −y−1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Ni(C38H38N10)](NO3)2·2H2O |
Mr | 853.55 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 292 |
a, b, c (Å) | 15.3395 (16), 13.1695 (14), 19.606 (2) |
β (°) | 98.501 (2) |
V (Å3) | 3917.2 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.57 |
Crystal size (mm) | 0.32 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.840, 0.946 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10917, 3847, 2618 |
Rint | 0.074 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.133, 0.95 |
No. of reflections | 3847 |
No. of parameters | 303 |
No. of restraints | 65 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.43, −0.34 |
Computer programs: SMART (Bruker, 2007), SAINT-Plus (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2003), SHELXTL (Sheldrick, 2008).
Ni1—N2 | 2.061 (2) | Ni1—N1 | 2.190 (3) |
Ni1—N4 | 2.071 (3) | ||
N2—Ni1—N2i | 175.20 (15) | N4—Ni1—N1i | 79.11 (10) |
N2—Ni1—N4 | 90.83 (10) | N2—Ni1—N1 | 94.90 (10) |
N2—Ni1—N4i | 91.53 (10) | N4—Ni1—N1 | 158.69 (10) |
N2i—Ni1—N4i | 90.82 (10) | N1i—Ni1—N1 | 81.47 (14) |
N2—Ni1—N1i | 81.44 (10) |
Symmetry code: (i) −x, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O1ii | 0.86 | 1.94 | 2.774 (10) | 164.7 |
N5—H5···O2iii | 0.86 | 2.14 | 2.923 (7) | 150.6 |
C4—H4B···O4 | 0.97 | 2.37 | 3.268 (12) | 153.6 |
C11—H11···Cg1iv | 0.93 | 2.727 | 3.542 | 146.8 |
C16—H16···Cg2v | 0.93 | 2.793 | 3.680 | 160.3 |
Symmetry codes: (ii) x−1, y, z; (iii) −x+1/2, −y+1/2, −z+1; (iv) x+1/2, y+1/2, z+1; (v) −x−1, −y−1, −z. |
Acknowledgements
The authors are grateful to the Science Technology Research Programme of the Education Office of Hubei Province (grant No. Q20082509) for financial support.
References
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N,N,N',N'-Tetrakis(2-benzimidazolymethyl) cyclohexane-1,2-diamine (CTB) is a polybenzimidazole ligand, which has the advantage that the basicity of the coordinating group approximates that of histidine (pKb: histidine = 7.96 and benzimidazole = 8.47; Main, 1992). Recently, studies of ligand CTB and its metal coordination compounds have been widely carried out (Li et al.,2005; Zhao et al., 2005). In a continuation of this work, the title compound, (I), was prepared as part of a series of syntheses to produce new benzimidazole derivatives. We report the crystal stucture of the title compound herein.
In the molecule structure of (I), the NiII ion is located on a crystallographic twofold rotation axis and is is coordinated by four benzimidazolyl(bzim) N atoms and two amino N atoms of the ligand CTB, in a distorted octahedral environment (Fig.1). The amino N atoms are slightly further away from the NiII ion than the benzimidazolyl N atoms. The Ni-N bond lengths are similar to the values reported in a related structure (Oki et al.,1996). As shown in Fig. 2, the crystal structure is stablized by intermolecular N—H···O, C—H···O hydrogen bonds and weak C—H···π interactions.