metal-organic compounds
Aqua{N,N-dimethyl-N′-[1-(2-pyridyl)ethylidene]ethane-1,2-diamine-κ3N,N′,N′′}bis(thiocyanato-κN)nickel(II)
aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: khaledi@siswa.um.edu.my
In the title compound, [Ni(NCS)2(C11H17N3)(H2O)], the NiII ion is six-coordinated by the N,N′,N"-tridentate Schiff base N atoms, two cis-positioned N-bound isothiocyanate groups and one water molecule. In the crystal, O—H⋯S hydrogen bonds link adjacent molecules into infinite layers parallel to the ac plane. The layers are further connected into a three-dimensional network via C—H⋯π interactions. The –CH2–N(CH3)2 fragment is disordered over two sets of sites in a 0.556 (5):0.444 (5) ratio.
Related literature
For the structure of a similar mononuclear nickel(II) thiocyanate complex, see: Suleiman Gwaram et al. (2011). For dimeric nickel(II) thiocyanate complexes with similar see: Diao (2007); Bhowmik et al. (2010).
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: X-SEED (Barbour, 2001); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811011512/go2008sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811011512/go2008Isup2.hkl
A mixture of 2-acetylpyridine (0.2 g, 1.65 mmol) and N,N-dimethylethyldiamine (0.15 g, 1.65 mmol) in ethanol (20 ml) was refluxed for 2 h followed by addition of a solution of nickel(II) acetate tetrahydrate (0.41 g, 1.65 mmol) and sodium thiocyanate (0.27 g, 3.3 mmol) in a minimum amount of water. The resulting solution was refluxed for 30 min, then set aside at room temperature. Brown crystals of the title compound were obtained by slow evaporation of the resulting reaction mixture.
The C-bound H atoms were placed at calculated positions at distances C—H = 0.95, 0.98 and 0.99 Å for aryl, methyl and methylene type H-atoms, respectively. The O-bound H atoms were placed in a difference Fourier map, and were refined with distance restraint of O—H 0.84 (2) Å. For all hydrogen atoms Uiso(H) were set to 1.2–1.5 times Ueq(carrier atom). C9, C10 and C11 were found to be disordered with two positions being resolved for each of the atoms. From anisotropic
the major component of the disorder had a site occupancy factor of 0.556 (5). The N3—Cmethyl bond distances were restrained to be 1.470±0.001 Å. The N3—C9 and N3—C9' bond distances were refined with the distance restraint of 1.480±0.001 Å. The C8—C9 and C8—C9' bond distances were refined with the distance restraint of 1.52±0.001 Å. The corresponding bond distances involving the disordered atoms were restrained to be equal with the SADI command in SHELXL97 (Sheldrick, 2008). An was established using effects; 1798 Friedel pairs were not merged.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: X-SEED (Barbour, 2001); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).[Ni(NCS)2(C11H17N3)(H2O)] | F(000) = 800 |
Mr = 384.16 | Dx = 1.473 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 2239 reflections |
a = 12.8404 (2) Å | θ = 2.9–27.9° |
b = 14.2623 (3) Å | µ = 1.37 mm−1 |
c = 9.5868 (2) Å | T = 100 K |
β = 99.467 (1)° | Block, brown |
V = 1731.75 (6) Å3 | 0.22 × 0.19 × 0.11 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 3698 independent reflections |
Radiation source: fine-focus sealed tube | 3451 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
ϕ and ω scans | θmax = 27.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −16→16 |
Tmin = 0.753, Tmax = 0.864 | k = −18→18 |
7792 measured reflections | l = −12→12 |
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)] = 0.031 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.070 | w = 1/[σ2(Fo2) + (0.0313P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.02 | (Δ/σ)max = 0.001 |
3698 reflections | Δρmax = 0.58 e Å−3 |
234 parameters | Δρmin = −0.52 e Å−3 |
16 restraints | Absolute structure: Flack (1983), 1798 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.020 (11) |
[Ni(NCS)2(C11H17N3)(H2O)] | V = 1731.75 (6) Å3 |
Mr = 384.16 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 12.8404 (2) Å | µ = 1.37 mm−1 |
b = 14.2623 (3) Å | T = 100 K |
c = 9.5868 (2) Å | 0.22 × 0.19 × 0.11 mm |
β = 99.467 (1)° |
Bruker APEXII CCD diffractometer | 3698 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3451 reflections with I > 2σ(I) |
Tmin = 0.753, Tmax = 0.864 | Rint = 0.026 |
7792 measured reflections |
R[F2 > 2σ(F2)] = 0.031 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.070 | Δρmax = 0.58 e Å−3 |
S = 1.02 | Δρmin = −0.52 e Å−3 |
3698 reflections | Absolute structure: Flack (1983), 1798 Friedel pairs |
234 parameters | Absolute structure parameter: 0.020 (11) |
16 restraints |
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 | 0.53275 (7) | 0.77376 (2) | 0.26546 (8) | 0.01875 (9) | |
S1 | 0.66956 (9) | 0.64265 (6) | 0.72084 (11) | 0.02834 (19) | |
S2 | 0.87020 (9) | 0.82690 (6) | 0.13658 (11) | 0.02889 (19) | |
O1 | 0.3999 (2) | 0.79724 (19) | 0.3691 (3) | 0.0272 (5) | |
H1A | 0.392 (3) | 0.763 (2) | 0.438 (3) | 0.041* | |
H1B | 0.3417 (19) | 0.804 (3) | 0.319 (3) | 0.041* | |
N1 | 0.55528 (19) | 0.91914 (17) | 0.2861 (3) | 0.0203 (6) | |
N2 | 0.4415 (2) | 0.82344 (18) | 0.0894 (2) | 0.0212 (5) | |
N3 | 0.47431 (16) | 0.64117 (17) | 0.1766 (2) | 0.0310 (6) | |
N4 | 0.6034 (2) | 0.72811 (19) | 0.4589 (3) | 0.0292 (6) | |
N5 | 0.6702 (3) | 0.7681 (2) | 0.1831 (3) | 0.0278 (7) | |
C1 | 0.6229 (3) | 0.9645 (2) | 0.3838 (3) | 0.0286 (7) | |
H1 | 0.6663 | 0.9295 | 0.4551 | 0.034* | |
C2 | 0.6315 (3) | 1.0619 (3) | 0.3840 (4) | 0.0433 (10) | |
H2 | 0.6805 | 1.0929 | 0.4540 | 0.052* | |
C3 | 0.5683 (3) | 1.1122 (3) | 0.2819 (4) | 0.0421 (10) | |
H3 | 0.5722 | 1.1788 | 0.2816 | 0.050* | |
C4 | 0.4990 (3) | 1.0663 (2) | 0.1793 (4) | 0.0360 (8) | |
H4 | 0.4552 | 1.1004 | 0.1070 | 0.043* | |
C5 | 0.4946 (2) | 0.9689 (2) | 0.1842 (3) | 0.0223 (6) | |
C6 | 0.4261 (2) | 0.9115 (2) | 0.0758 (3) | 0.0242 (6) | |
C7 | 0.3465 (3) | 0.9581 (3) | −0.0336 (3) | 0.0360 (8) | |
H7A | 0.2898 | 0.9845 | 0.0114 | 0.054* | |
H7B | 0.3168 | 0.9119 | −0.1049 | 0.054* | |
H7C | 0.3806 | 1.0084 | −0.0791 | 0.054* | |
C8 | 0.3855 (3) | 0.7537 (2) | −0.0046 (3) | 0.0297 (7) | |
H8A | 0.3824 | 0.7729 | −0.1044 | 0.036* | |
H8B | 0.3125 | 0.7462 | 0.0144 | 0.036* | |
C9 | 0.4462 (4) | 0.6625 (3) | 0.0238 (2) | 0.0265 (14) | 0.556 (5) |
H9A | 0.4029 | 0.6106 | −0.0234 | 0.032* | 0.556 (5) |
H9B | 0.5116 | 0.6663 | −0.0179 | 0.032* | 0.556 (5) |
C10 | 0.5496 (4) | 0.5631 (3) | 0.2016 (7) | 0.0375 (17) | 0.556 (5) |
H10A | 0.5166 | 0.5060 | 0.1578 | 0.056* | 0.556 (5) |
H10B | 0.5700 | 0.5532 | 0.3035 | 0.056* | 0.556 (5) |
H10C | 0.6124 | 0.5780 | 0.1600 | 0.056* | 0.556 (5) |
C11 | 0.3747 (3) | 0.6125 (4) | 0.2213 (6) | 0.0306 (15) | 0.556 (5) |
H11A | 0.3520 | 0.5521 | 0.1780 | 0.046* | 0.556 (5) |
H11B | 0.3203 | 0.6599 | 0.1912 | 0.046* | 0.556 (5) |
H11C | 0.3854 | 0.6065 | 0.3245 | 0.046* | 0.556 (5) |
C9' | 0.3761 (3) | 0.6644 (4) | 0.0790 (7) | 0.045 (2) | 0.444 (5) |
H9'A | 0.3179 | 0.6716 | 0.1342 | 0.053* | 0.444 (5) |
H9'B | 0.3579 | 0.6117 | 0.0122 | 0.053* | 0.444 (5) |
C10' | 0.5540 (5) | 0.5991 (6) | 0.1017 (9) | 0.045 (2) | 0.444 (5) |
H10D | 0.5281 | 0.5388 | 0.0610 | 0.067* | 0.444 (5) |
H10E | 0.6197 | 0.5893 | 0.1682 | 0.067* | 0.444 (5) |
H10F | 0.5675 | 0.6412 | 0.0259 | 0.067* | 0.444 (5) |
C11' | 0.4673 (8) | 0.5708 (4) | 0.2867 (6) | 0.039 (2) | 0.444 (5) |
H11D | 0.4406 | 0.5117 | 0.2424 | 0.059* | 0.444 (5) |
H11E | 0.4191 | 0.5932 | 0.3489 | 0.059* | 0.444 (5) |
H11F | 0.5375 | 0.5606 | 0.3425 | 0.059* | 0.444 (5) |
C12 | 0.6312 (3) | 0.6935 (2) | 0.5665 (3) | 0.0236 (6) | |
C13 | 0.7532 (3) | 0.7906 (2) | 0.1624 (3) | 0.0244 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.02124 (18) | 0.01989 (18) | 0.01472 (16) | −0.00167 (17) | 0.00176 (13) | 0.00004 (16) |
S1 | 0.0305 (5) | 0.0303 (4) | 0.0227 (4) | 0.0010 (3) | −0.0001 (3) | 0.0074 (3) |
S2 | 0.0281 (4) | 0.0372 (5) | 0.0227 (4) | 0.0023 (3) | 0.0082 (3) | 0.0004 (3) |
O1 | 0.0213 (13) | 0.0379 (14) | 0.0219 (12) | −0.0058 (10) | 0.0023 (10) | 0.0021 (10) |
N1 | 0.0196 (15) | 0.0235 (13) | 0.0185 (13) | −0.0052 (10) | 0.0055 (11) | −0.0028 (10) |
N2 | 0.0195 (13) | 0.0293 (15) | 0.0150 (12) | −0.0046 (11) | 0.0030 (10) | −0.0051 (10) |
N3 | 0.0463 (18) | 0.0230 (15) | 0.0254 (13) | −0.0079 (12) | 0.0112 (13) | −0.0063 (11) |
N4 | 0.0311 (16) | 0.0345 (17) | 0.0222 (14) | 0.0040 (12) | 0.0044 (12) | 0.0035 (12) |
N5 | 0.0287 (17) | 0.0344 (17) | 0.0215 (14) | 0.0071 (13) | 0.0075 (13) | 0.0040 (11) |
C1 | 0.0273 (18) | 0.037 (2) | 0.0227 (16) | −0.0095 (15) | 0.0072 (14) | −0.0096 (14) |
C2 | 0.049 (2) | 0.046 (2) | 0.039 (2) | −0.0252 (19) | 0.0200 (19) | −0.0243 (18) |
C3 | 0.063 (3) | 0.0250 (18) | 0.045 (2) | −0.0114 (16) | 0.027 (2) | −0.0077 (16) |
C4 | 0.052 (2) | 0.0250 (19) | 0.0353 (18) | 0.0013 (16) | 0.0211 (18) | 0.0043 (14) |
C5 | 0.0256 (17) | 0.0223 (16) | 0.0217 (14) | 0.0011 (13) | 0.0117 (13) | 0.0036 (12) |
C6 | 0.0230 (16) | 0.0302 (18) | 0.0206 (15) | 0.0014 (13) | 0.0073 (12) | 0.0066 (13) |
C7 | 0.0299 (18) | 0.051 (2) | 0.0275 (18) | 0.0088 (16) | 0.0050 (15) | 0.0158 (16) |
C8 | 0.0271 (17) | 0.042 (2) | 0.0194 (15) | −0.0122 (15) | 0.0010 (13) | −0.0066 (13) |
C9 | 0.023 (3) | 0.027 (3) | 0.029 (3) | −0.004 (2) | 0.001 (3) | −0.012 (2) |
C10 | 0.050 (4) | 0.027 (4) | 0.037 (4) | 0.001 (3) | 0.013 (3) | 0.002 (3) |
C11 | 0.035 (3) | 0.023 (3) | 0.034 (3) | −0.005 (2) | 0.007 (3) | −0.005 (2) |
C9' | 0.035 (5) | 0.050 (6) | 0.050 (5) | −0.018 (4) | 0.012 (4) | −0.021 (4) |
C10' | 0.039 (5) | 0.025 (5) | 0.065 (6) | 0.000 (4) | −0.008 (5) | −0.007 (4) |
C11' | 0.063 (6) | 0.017 (4) | 0.039 (5) | 0.001 (4) | 0.013 (4) | −0.003 (3) |
C12 | 0.0241 (16) | 0.0217 (16) | 0.0249 (16) | 0.0005 (13) | 0.0037 (13) | −0.0018 (13) |
C13 | 0.0317 (18) | 0.0262 (17) | 0.0160 (14) | 0.0121 (14) | 0.0060 (13) | 0.0054 (12) |
Ni1—N2 | 2.018 (2) | C4—C5 | 1.392 (4) |
Ni1—N4 | 2.033 (3) | C4—H4 | 0.9500 |
Ni1—N5 | 2.050 (3) | C5—C6 | 1.491 (4) |
Ni1—N1 | 2.098 (2) | C6—C7 | 1.495 (4) |
Ni1—O1 | 2.137 (2) | C7—H7A | 0.9800 |
Ni1—N3 | 2.158 (2) | C7—H7B | 0.9800 |
S1—C12 | 1.648 (3) | C7—H7C | 0.9800 |
S2—C13 | 1.645 (4) | C8—C9 | 1.5180 (10) |
O1—H1A | 0.836 (18) | C8—C9' | 1.5204 (10) |
O1—H1B | 0.824 (19) | C8—H8A | 0.9900 |
N1—C1 | 1.335 (4) | C8—H8B | 0.9900 |
N1—C5 | 1.347 (4) | C9—H9A | 0.9900 |
N2—C6 | 1.275 (4) | C9—H9B | 0.9900 |
N2—C8 | 1.451 (4) | C10—H10A | 0.9800 |
N3—C10 | 1.4683 (10) | C10—H10B | 0.9800 |
N3—C11' | 1.4706 (10) | C10—H10C | 0.9800 |
N3—C10' | 1.4716 (10) | C11—H11A | 0.9800 |
N3—C11 | 1.4725 (10) | C11—H11B | 0.9800 |
N3—C9' | 1.4783 (10) | C11—H11C | 0.9800 |
N3—C9 | 1.4810 (10) | C9'—H9'A | 0.9900 |
N4—C12 | 1.147 (4) | C9'—H9'B | 0.9900 |
N5—C13 | 1.162 (4) | C10'—H10D | 0.9800 |
C1—C2 | 1.394 (5) | C10'—H10E | 0.9800 |
C1—H1 | 0.9500 | C10'—H10F | 0.9800 |
C2—C3 | 1.368 (5) | C11'—H11D | 0.9800 |
C2—H2 | 0.9500 | C11'—H11E | 0.9800 |
C3—C4 | 1.378 (5) | C11'—H11F | 0.9800 |
C3—H3 | 0.9500 | ||
N2—Ni1—N4 | 170.38 (10) | N1—C5—C6 | 114.9 (3) |
N2—Ni1—N5 | 96.32 (11) | C4—C5—C6 | 123.1 (3) |
N4—Ni1—N5 | 93.17 (11) | N2—C6—C5 | 113.9 (3) |
N2—Ni1—N1 | 77.53 (9) | N2—C6—C7 | 125.9 (3) |
N4—Ni1—N1 | 101.33 (10) | C5—C6—C7 | 120.2 (3) |
N5—Ni1—N1 | 87.79 (10) | C6—C7—H7A | 109.5 |
N2—Ni1—O1 | 86.32 (9) | C6—C7—H7B | 109.5 |
N4—Ni1—O1 | 84.06 (10) | H7A—C7—H7B | 109.5 |
N5—Ni1—O1 | 171.42 (11) | C6—C7—H7C | 109.5 |
N1—Ni1—O1 | 84.80 (10) | H7A—C7—H7C | 109.5 |
N2—Ni1—N3 | 82.01 (10) | H7B—C7—H7C | 109.5 |
N4—Ni1—N3 | 98.83 (10) | N2—C8—C9 | 106.8 (3) |
N5—Ni1—N3 | 94.52 (11) | N2—C8—C9' | 108.7 (3) |
N1—Ni1—N3 | 159.55 (9) | N2—C8—H8A | 110.4 |
O1—Ni1—N3 | 93.93 (10) | C9—C8—H8A | 110.4 |
Ni1—O1—H1A | 119 (3) | C9'—C8—H8A | 138.3 |
Ni1—O1—H1B | 118 (3) | N2—C8—H8B | 110.4 |
H1A—O1—H1B | 108 (4) | C9—C8—H8B | 110.4 |
C1—N1—C5 | 119.0 (3) | C9'—C8—H8B | 69.7 |
C1—N1—Ni1 | 127.5 (2) | H8A—C8—H8B | 108.6 |
C5—N1—Ni1 | 113.44 (19) | N3—C9—C8 | 112.8 (3) |
C6—N2—C8 | 124.0 (3) | N3—C9—H9A | 109.0 |
C6—N2—Ni1 | 119.4 (2) | C8—C9—H9A | 109.0 |
C8—N2—Ni1 | 116.04 (19) | N3—C9—H9B | 109.0 |
C10—N3—C11' | 58.8 (4) | C8—C9—H9B | 109.0 |
C11'—N3—C10' | 101.7 (5) | H9A—C9—H9B | 107.8 |
C10—N3—C11 | 108.8 (4) | N3—C10—H10A | 109.5 |
C11'—N3—C11 | 56.1 (4) | N3—C10—H10B | 109.5 |
C10'—N3—C11 | 137.4 (4) | H10A—C10—H10B | 109.5 |
C10—N3—C9' | 138.0 (4) | N3—C10—H10C | 109.5 |
C11'—N3—C9' | 117.4 (4) | H10A—C10—H10C | 109.5 |
C10'—N3—C9' | 111.8 (5) | H10B—C10—H10C | 109.5 |
C11—N3—C9' | 63.6 (3) | N3—C11—H11A | 109.5 |
C10—N3—C9 | 111.3 (3) | N3—C11—H11B | 109.5 |
C11'—N3—C9 | 144.7 (4) | H11A—C11—H11B | 109.5 |
C10'—N3—C9 | 71.2 (4) | N3—C11—H11C | 109.5 |
C11—N3—C9 | 105.2 (4) | H11A—C11—H11C | 109.5 |
C10—N3—Ni1 | 115.1 (3) | H11B—C11—H11C | 109.5 |
C11'—N3—Ni1 | 111.9 (3) | N3—C9'—C8 | 112.8 (3) |
C10'—N3—Ni1 | 109.0 (3) | N3—C9'—H9'A | 109.0 |
C11—N3—Ni1 | 113.0 (3) | C8—C9'—H9'A | 109.0 |
C9'—N3—Ni1 | 105.0 (3) | N3—C9'—H9'B | 109.0 |
C9—N3—Ni1 | 102.9 (2) | C8—C9'—H9'B | 109.0 |
C12—N4—Ni1 | 170.1 (3) | H9'A—C9'—H9'B | 107.8 |
C13—N5—Ni1 | 158.1 (3) | N3—C10'—H10D | 109.5 |
N1—C1—C2 | 121.8 (3) | N3—C10'—H10E | 109.5 |
N1—C1—H1 | 119.1 | H10D—C10'—H10E | 109.5 |
C2—C1—H1 | 119.1 | N3—C10'—H10F | 109.5 |
C3—C2—C1 | 118.9 (3) | H10D—C10'—H10F | 109.5 |
C3—C2—H2 | 120.5 | H10E—C10'—H10F | 109.5 |
C1—C2—H2 | 120.5 | N3—C11'—H11D | 109.5 |
C2—C3—C4 | 119.9 (3) | N3—C11'—H11E | 109.5 |
C2—C3—H3 | 120.0 | H11D—C11'—H11E | 109.5 |
C4—C3—H3 | 120.0 | N3—C11'—H11F | 109.5 |
C3—C4—C5 | 118.3 (3) | H11D—C11'—H11F | 109.5 |
C3—C4—H4 | 120.8 | H11E—C11'—H11F | 109.5 |
C5—C4—H4 | 120.8 | N4—C12—S1 | 179.1 (3) |
N1—C5—C4 | 121.9 (3) | N5—C13—S2 | 177.5 (3) |
Cg1 is the centroid of the N1,C1–C5 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1B···S1i | 0.82 (2) | 2.38 (2) | 3.181 (3) | 164 (4) |
O1—H1A···S2ii | 0.84 (2) | 2.35 (2) | 3.190 (3) | 178 (4) |
C7—H7C···Cg1iii | 0.98 | 2.88 | 3.531 (3) | 125 |
Symmetry codes: (i) x−1/2, −y+3/2, z−1/2; (ii) x−1/2, −y+3/2, z+1/2; (iii) x, −y+2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Ni(NCS)2(C11H17N3)(H2O)] |
Mr | 384.16 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 100 |
a, b, c (Å) | 12.8404 (2), 14.2623 (3), 9.5868 (2) |
β (°) | 99.467 (1) |
V (Å3) | 1731.75 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.37 |
Crystal size (mm) | 0.22 × 0.19 × 0.11 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.753, 0.864 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7792, 3698, 3451 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.031, 0.070, 1.02 |
No. of reflections | 3698 |
No. of parameters | 234 |
No. of restraints | 16 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.58, −0.52 |
Absolute structure | Flack (1983), 1798 Friedel pairs |
Absolute structure parameter | 0.020 (11) |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), X-SEED (Barbour, 2001), SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).
Cg1 is the centroid of the N1,C1–C5 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1B···S1i | 0.824 (19) | 2.38 (2) | 3.181 (3) | 164 (4) |
O1—H1A···S2ii | 0.836 (18) | 2.354 (19) | 3.190 (3) | 178 (4) |
C7—H7C···Cg1iii | 0.98 | 2.88 | 3.531 (3) | 125 |
Symmetry codes: (i) x−1/2, −y+3/2, z−1/2; (ii) x−1/2, −y+3/2, z+1/2; (iii) x, −y+2, z−1/2. |
Acknowledgements
The authors thank the University of Malaya for funding this study (FRGS grant No. FP004/2010B).
References
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The title mixed-ligand complex was obtained via the treatment of nickel(II) ion with the Schiff base N,N-dimethyl-N'-[methyl(2-pyridyl)methylene]ethane-1,2-diamine, prepared in situ, and the thiocyanate salt. The Schiff base acts as an N,N',N"-tridentate chelate and the two thiocyanate ions behave in an N-donor fashion towards the NiII ion. The geometry around the metal center is completed by one water O atom. This arrangement is similar to what was observed in the nickel(II) thiocyanate complex of a similar Schiff base (Suleiman Gwaram et al., 2011). In contrast, the metal ions in the nickel(II) thiocyanate complex of N,N-dimethyl-N'-(2-pyridylmethylene)ethane-1,2-diamine (Diao, 2007) and N,N-diethyl-N'-[methyl(2-pyridyl)methylene]ethane-1,2-diamine (Bhowmik et al., 2010) are doubly bridged into dimers by N:S-bridging thiocyanate ligands. In the present structure, the adjacent molecules are connected into 2-D arrays in ac plane via O—H···S interactions (Table 1, Fig. 2). A C—H···π interaction (Table 1) connects the layers into a three-dimensional structure.