metal-organic compounds
{6-[(2-Anilinoethyl)iminomethyl]-2-ethoxyphenolato}(thiocyanato-κN)copper(II)
aDepartment of Chemistry, Huzhou University, Huzhou 313000, People's Republic of China
*Correspondence e-mail: chenyi_wang@163.com
In the title complex, [Cu(C17H19N2O2)(NCS)], the CuII atom is chelated by the phenolate O atom, the imine N atom and the amine N atom of the N,N′,O-tridentate 2-ethoxy-6-[(2-anilinoethyl)iminomethyl]phenolate ligand, and by the N atom of a thiocyanate anion, forming a distorted CuON3 square-planar geometry. The dihedral angle between the aromatic rings of the ligand is 67.9 (4)°. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds occur, generating R22(8) loops.
Related literature
For background to the structures and properties of copper complexes, see: Collinson & Fenton (1996); Hossain et al. (1996); Tarafder et al. (2002); Musie et al. (2003); García-Raso et al. (2003); Reddy et al. (2000); Ray et al. (2003); Arnold et al. (2003); Raptopoulou et al. (1998). For related structures, see: Wang et al. (2009a,b); Wang (2009); Hebbachi & Benali-Cherif (2005); Butcher et al. (2003); Elmali et al. (2000); Warda et al. (1997).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 1998); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810010305/hb5365sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810010305/hb5365Isup2.hkl
3-Ethoxysalicylaldehyde (1.0 mmol, 166 mg), N-phenyl-1,2-diaminoethane (1.0 mmol, 136 mg), ammonium thiocyanate (1.0 mmol, 76 mg), and Cu(CH3COO)2.H2O (1.0 mmol, 200 mg) were dissolved in methanol (80 ml). The mixture was stirred at room temperature for about 1 h to give a blue solution. After keeping the solution in air for a few days, blue blocks of (I) were formed.
H2 was located from a difference Fourier map and refined isotropically, with N—H distance of 0.90 (1) Å. Other H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H distances of 0.93-0.97 Å, and with Uiso(H) set at 1.2Ueq(C) and 1.5Ueq(C17).
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); 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 (I), showing displacement ellipsoids drawn at the 30% probability level. |
[Cu(C17H19N2O2)(NCS)] | F(000) = 1672 |
Mr = 404.96 | Dx = 1.484 Mg m−3 |
Orthorhombic, Pbcn | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2n 2ab | Cell parameters from 2506 reflections |
a = 13.6786 (5) Å | θ = 2.4–24.9° |
b = 10.4938 (4) Å | µ = 1.34 mm−1 |
c = 25.2618 (10) Å | T = 298 K |
V = 3626.1 (2) Å3 | Block, blue |
Z = 8 | 0.30 × 0.27 × 0.27 mm |
Bruker SMART CCD diffractometer | 3746 independent reflections |
Radiation source: fine-focus sealed tube | 2041 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.069 |
ω scan | θmax = 26.5°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −17→16 |
Tmin = 0.690, Tmax = 0.714 | k = −13→12 |
19741 measured reflections | l = −26→31 |
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)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.182 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0843P)2 + 3.6378P] where P = (Fo2 + 2Fc2)/3 |
3746 reflections | (Δ/σ)max = 0.001 |
229 parameters | Δρmax = 1.25 e Å−3 |
13 restraints | Δρmin = −0.64 e Å−3 |
[Cu(C17H19N2O2)(NCS)] | V = 3626.1 (2) Å3 |
Mr = 404.96 | Z = 8 |
Orthorhombic, Pbcn | Mo Kα radiation |
a = 13.6786 (5) Å | µ = 1.34 mm−1 |
b = 10.4938 (4) Å | T = 298 K |
c = 25.2618 (10) Å | 0.30 × 0.27 × 0.27 mm |
Bruker SMART CCD diffractometer | 3746 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2041 reflections with I > 2σ(I) |
Tmin = 0.690, Tmax = 0.714 | Rint = 0.069 |
19741 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 13 restraints |
wR(F2) = 0.182 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 1.25 e Å−3 |
3746 reflections | Δρmin = −0.64 e Å−3 |
229 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
Cu1 | 0.88473 (4) | 0.07765 (5) | 0.49939 (2) | 0.0424 (2) | |
O1 | 0.9189 (3) | 0.0617 (3) | 0.57256 (13) | 0.0498 (9) | |
O2 | 0.9226 (4) | −0.0030 (7) | 0.67464 (19) | 0.0976 (17) | |
S1 | 0.82168 (12) | −0.35452 (14) | 0.52360 (11) | 0.1050 (8) | |
N1 | 0.9061 (3) | 0.2590 (4) | 0.50007 (17) | 0.0454 (10) | |
N2 | 0.9049 (3) | 0.0938 (4) | 0.41821 (16) | 0.0468 (10) | |
N3 | 0.8557 (4) | −0.1032 (4) | 0.49588 (17) | 0.0568 (12) | |
C1 | 0.9081 (4) | 0.2849 (6) | 0.5943 (2) | 0.0625 (15) | |
C2 | 0.9123 (4) | 0.1538 (6) | 0.6078 (2) | 0.0528 (14) | |
C3 | 0.9115 (5) | 0.1206 (8) | 0.6623 (2) | 0.0731 (18) | |
C4 | 0.9057 (6) | 0.2158 (12) | 0.7003 (3) | 0.108 (3) | |
H4 | 0.9043 | 0.1930 | 0.7358 | 0.130* | |
C5 | 0.9020 (7) | 0.3417 (12) | 0.6870 (4) | 0.123 (4) | |
H5 | 0.8990 | 0.4034 | 0.7134 | 0.148* | |
C6 | 0.9027 (5) | 0.3772 (8) | 0.6348 (4) | 0.094 (3) | |
H6 | 0.8995 | 0.4631 | 0.6260 | 0.113* | |
C7 | 0.9110 (4) | 0.3275 (5) | 0.5412 (3) | 0.0585 (15) | |
H7 | 0.9172 | 0.4149 | 0.5360 | 0.070* | |
C8 | 0.9046 (4) | 0.3177 (5) | 0.4472 (2) | 0.0597 (16) | |
H8A | 0.9436 | 0.3948 | 0.4471 | 0.072* | |
H8B | 0.8382 | 0.3397 | 0.4374 | 0.072* | |
C9 | 0.9458 (4) | 0.2233 (5) | 0.4086 (2) | 0.0567 (14) | |
H9A | 0.9303 | 0.2500 | 0.3728 | 0.068* | |
H9B | 1.0163 | 0.2207 | 0.4121 | 0.068* | |
C10 | 0.8236 (4) | 0.0581 (6) | 0.3843 (2) | 0.0529 (14) | |
C11 | 0.7402 (5) | 0.1237 (8) | 0.3838 (3) | 0.110 (3) | |
H11 | 0.7344 | 0.1955 | 0.4052 | 0.132* | |
C12 | 0.6615 (6) | 0.0878 (10) | 0.3522 (5) | 0.124 (3) | |
H12 | 0.6035 | 0.1339 | 0.3538 | 0.149* | |
C13 | 0.6683 (6) | −0.0091 (11) | 0.3208 (3) | 0.092 (3) | |
H13 | 0.6174 | −0.0291 | 0.2978 | 0.110* | |
C14 | 0.7499 (7) | −0.0807 (10) | 0.3217 (3) | 0.117 (3) | |
H14 | 0.7538 | −0.1532 | 0.3006 | 0.141* | |
C15 | 0.8299 (6) | −0.0466 (9) | 0.3544 (3) | 0.105 (3) | |
H15 | 0.8861 | −0.0964 | 0.3551 | 0.126* | |
C16 | 0.8566 (12) | −0.0681 (15) | 0.6821 (7) | 0.215 (7) | |
H16A | 0.8254 | −0.0841 | 0.6483 | 0.258* | |
H16B | 0.8102 | −0.0210 | 0.7036 | 0.258* | |
C17 | 0.8735 (8) | −0.1978 (12) | 0.7090 (4) | 0.154 (4) | |
H17A | 0.8550 | −0.2650 | 0.6853 | 0.232* | |
H17B | 0.8348 | −0.2029 | 0.7406 | 0.232* | |
H17C | 0.9414 | −0.2065 | 0.7180 | 0.232* | |
C18 | 0.8418 (4) | −0.2070 (5) | 0.5072 (2) | 0.0523 (13) | |
H2 | 0.952 (3) | 0.035 (4) | 0.413 (2) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0542 (4) | 0.0294 (3) | 0.0437 (4) | −0.0002 (2) | −0.0047 (3) | 0.0060 (3) |
O1 | 0.058 (2) | 0.048 (2) | 0.0435 (19) | 0.0116 (17) | −0.0025 (16) | 0.0050 (16) |
O2 | 0.076 (3) | 0.147 (5) | 0.069 (3) | 0.005 (4) | 0.018 (3) | 0.042 (3) |
S1 | 0.0524 (9) | 0.0341 (8) | 0.228 (2) | −0.0038 (7) | −0.0174 (12) | 0.0304 (11) |
N1 | 0.042 (2) | 0.033 (2) | 0.061 (3) | 0.0013 (16) | 0.000 (2) | 0.006 (2) |
N2 | 0.047 (3) | 0.051 (3) | 0.042 (2) | 0.003 (2) | −0.0037 (19) | 0.006 (2) |
N3 | 0.074 (3) | 0.034 (2) | 0.063 (3) | −0.002 (2) | −0.006 (2) | 0.004 (2) |
C1 | 0.053 (4) | 0.065 (4) | 0.069 (4) | 0.000 (3) | 0.006 (3) | −0.018 (3) |
C2 | 0.047 (3) | 0.065 (4) | 0.047 (3) | 0.001 (3) | 0.002 (2) | −0.005 (3) |
C3 | 0.063 (4) | 0.102 (5) | 0.054 (4) | 0.001 (4) | 0.004 (3) | 0.006 (4) |
C4 | 0.087 (6) | 0.182 (10) | 0.056 (4) | −0.012 (7) | 0.016 (4) | −0.040 (6) |
C5 | 0.115 (8) | 0.140 (9) | 0.115 (8) | −0.022 (7) | 0.028 (6) | −0.067 (8) |
C6 | 0.092 (6) | 0.083 (5) | 0.106 (6) | −0.011 (4) | 0.028 (5) | −0.049 (5) |
C7 | 0.054 (3) | 0.036 (3) | 0.086 (5) | 0.003 (2) | 0.005 (3) | −0.007 (3) |
C8 | 0.058 (4) | 0.043 (3) | 0.078 (4) | 0.001 (3) | 0.004 (3) | 0.028 (3) |
C9 | 0.045 (3) | 0.064 (4) | 0.061 (3) | 0.000 (3) | 0.003 (3) | 0.022 (3) |
C10 | 0.045 (3) | 0.072 (4) | 0.042 (3) | −0.003 (3) | −0.003 (2) | 0.012 (3) |
C11 | 0.062 (5) | 0.122 (7) | 0.146 (7) | 0.022 (5) | −0.032 (5) | −0.036 (6) |
C12 | 0.068 (6) | 0.140 (9) | 0.164 (9) | 0.010 (5) | −0.048 (6) | −0.012 (7) |
C13 | 0.068 (5) | 0.152 (8) | 0.056 (4) | −0.039 (6) | −0.019 (4) | 0.032 (5) |
C14 | 0.092 (6) | 0.166 (9) | 0.095 (6) | −0.021 (6) | −0.019 (5) | −0.057 (6) |
C15 | 0.067 (5) | 0.140 (8) | 0.108 (6) | 0.007 (5) | −0.015 (4) | −0.053 (6) |
C16 | 0.199 (10) | 0.184 (10) | 0.261 (11) | 0.002 (8) | 0.075 (8) | −0.001 (8) |
C17 | 0.148 (7) | 0.157 (8) | 0.158 (7) | −0.017 (6) | 0.054 (6) | 0.036 (6) |
C18 | 0.046 (3) | 0.034 (3) | 0.077 (4) | 0.001 (2) | −0.007 (3) | 0.004 (3) |
Cu1—O1 | 1.914 (3) | C7—H7 | 0.9300 |
Cu1—N1 | 1.926 (4) | C8—C9 | 1.499 (8) |
Cu1—N3 | 1.941 (4) | C8—H8A | 0.9700 |
Cu1—N2 | 2.076 (4) | C8—H8B | 0.9700 |
O1—C2 | 1.316 (6) | C9—H9A | 0.9700 |
O2—C16 | 1.148 (15) | C9—H9B | 0.9700 |
O2—C3 | 1.342 (9) | C10—C11 | 1.332 (9) |
S1—C18 | 1.627 (5) | C10—C15 | 1.336 (9) |
N1—C7 | 1.265 (7) | C11—C12 | 1.392 (11) |
N1—C8 | 1.470 (6) | C11—H11 | 0.9300 |
N2—C10 | 1.452 (7) | C12—C13 | 1.294 (12) |
N2—C9 | 1.489 (7) | C12—H12 | 0.9300 |
N2—H2 | 0.901 (10) | C13—C14 | 1.346 (12) |
N3—C18 | 1.142 (7) | C13—H13 | 0.9300 |
C1—C6 | 1.411 (9) | C14—C15 | 1.419 (10) |
C1—C7 | 1.414 (8) | C14—H14 | 0.9300 |
C1—C2 | 1.419 (8) | C15—H15 | 0.9300 |
C2—C3 | 1.420 (8) | C16—C17 | 1.538 (17) |
C3—C4 | 1.388 (11) | C16—H16A | 0.9700 |
C4—C5 | 1.364 (13) | C16—H16B | 0.9700 |
C4—H4 | 0.9300 | C17—H17A | 0.9600 |
C5—C6 | 1.371 (13) | C17—H17B | 0.9600 |
C5—H5 | 0.9300 | C17—H17C | 0.9600 |
C6—H6 | 0.9300 | ||
O1—Cu1—N1 | 92.33 (17) | C9—C8—H8A | 110.1 |
O1—Cu1—N3 | 90.50 (16) | N1—C8—H8B | 110.1 |
N1—Cu1—N3 | 176.25 (19) | C9—C8—H8B | 110.1 |
O1—Cu1—N2 | 158.24 (17) | H8A—C8—H8B | 108.4 |
N1—Cu1—N2 | 84.73 (18) | N2—C9—C8 | 110.9 (4) |
N3—Cu1—N2 | 93.54 (17) | N2—C9—H9A | 109.5 |
C2—O1—Cu1 | 124.9 (3) | C8—C9—H9A | 109.5 |
C16—O2—C3 | 121.6 (10) | N2—C9—H9B | 109.5 |
C7—N1—C8 | 120.6 (5) | C8—C9—H9B | 109.5 |
C7—N1—Cu1 | 125.2 (4) | H9A—C9—H9B | 108.1 |
C8—N1—Cu1 | 113.8 (3) | C11—C10—C15 | 118.3 (6) |
C10—N2—C9 | 115.3 (4) | C11—C10—N2 | 121.9 (6) |
C10—N2—Cu1 | 117.4 (3) | C15—C10—N2 | 119.7 (6) |
C9—N2—Cu1 | 106.5 (3) | C10—C11—C12 | 121.9 (8) |
C10—N2—H2 | 107 (4) | C10—C11—H11 | 119.0 |
C9—N2—H2 | 109 (4) | C12—C11—H11 | 119.0 |
Cu1—N2—H2 | 100 (4) | C13—C12—C11 | 120.6 (9) |
C18—N3—Cu1 | 162.8 (5) | C13—C12—H12 | 119.7 |
C6—C1—C7 | 118.2 (7) | C11—C12—H12 | 119.7 |
C6—C1—C2 | 119.6 (7) | C12—C13—C14 | 119.2 (7) |
C7—C1—C2 | 122.2 (5) | C12—C13—H13 | 120.4 |
O1—C2—C1 | 123.5 (5) | C14—C13—H13 | 120.4 |
O1—C2—C3 | 118.4 (6) | C13—C14—C15 | 120.6 (8) |
C1—C2—C3 | 118.1 (6) | C13—C14—H14 | 119.7 |
O2—C3—C4 | 122.7 (7) | C15—C14—H14 | 119.7 |
O2—C3—C2 | 117.5 (6) | C10—C15—C14 | 119.2 (8) |
C4—C3—C2 | 119.6 (8) | C10—C15—H15 | 120.4 |
C5—C4—C3 | 122.0 (9) | C14—C15—H15 | 120.4 |
C5—C4—H4 | 119.0 | O2—C16—C17 | 118.8 (15) |
C3—C4—H4 | 119.0 | O2—C16—H16A | 107.6 |
C4—C5—C6 | 119.9 (9) | C17—C16—H16A | 107.6 |
C4—C5—H5 | 120.0 | O2—C16—H16B | 107.6 |
C6—C5—H5 | 120.0 | C17—C16—H16B | 107.6 |
C5—C6—C1 | 120.8 (9) | H16A—C16—H16B | 107.1 |
C5—C6—H6 | 119.6 | C16—C17—H17A | 109.5 |
C1—C6—H6 | 119.6 | C16—C17—H17B | 109.5 |
N1—C7—C1 | 126.7 (5) | H17A—C17—H17B | 109.5 |
N1—C7—H7 | 116.7 | C16—C17—H17C | 109.5 |
C1—C7—H7 | 116.7 | H17A—C17—H17C | 109.5 |
N1—C8—C9 | 108.0 (4) | H17B—C17—H17C | 109.5 |
N1—C8—H8A | 110.1 | N3—C18—S1 | 179.6 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.90 (1) | 2.07 (3) | 2.920 (6) | 157 (5) |
Symmetry code: (i) −x+2, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C17H19N2O2)(NCS)] |
Mr | 404.96 |
Crystal system, space group | Orthorhombic, Pbcn |
Temperature (K) | 298 |
a, b, c (Å) | 13.6786 (5), 10.4938 (4), 25.2618 (10) |
V (Å3) | 3626.1 (2) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 1.34 |
Crystal size (mm) | 0.30 × 0.27 × 0.27 |
Data collection | |
Diffractometer | Bruker SMART CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.690, 0.714 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19741, 3746, 2041 |
Rint | 0.069 |
(sin θ/λ)max (Å−1) | 0.627 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.182, 1.03 |
No. of reflections | 3746 |
No. of parameters | 229 |
No. of restraints | 13 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.25, −0.64 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008.
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.901 (10) | 2.07 (3) | 2.920 (6) | 157 (5) |
Symmetry code: (i) −x+2, −y, −z+1. |
Acknowledgements
This work was supported by the Natural Science Foundation of China (grant No. 30771696), the Natural Science Foundation of Zhejiang Province (grant No. Y407318) and the Science and Technology Plan of Huzhou (grant No. 2009 GG06).
References
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Copper(II) complexes have been received much attention for their versatile biological activities and interesting structures (Collinson & Fenton, 1996; Hossain et al., 1996; Tarafder et al., 2002; Musie et al., 2003; García-Raso et al., 2003). Considerable effort has been made to construct a variety of copper(II) complexes in an attempt to model the physical and chemical behaviour of copper-containing enzymes (Reddy et al., 2000). The peculiarity of copper lies in its ability to form complexes with coordination number four, five, and six (Ray et al., 2003; Arnold et al., 2003; Raptopoulou et al., 1998).
As part of our onging investigations into urease inhibitors (Wang et al., 2009a,b; Wang, 2009), we have synthesized the title compound, (I), a new CuII complex, and its crystal structure is reported here. The CuII atom in the complex is chelated by the phenolate O atom, imine N atom, and the amine N atom of 2-ethoxy-6-[(2-phenylaminoethylimino)methyl]phenolate, and by the N atom of a thiocyanate ligand, giving a square planar geometry (Fig. 1). The coordinate bond lengths and angles (Table 1) are typical and are comparable with those observed in other related copper(II) complexes (Hebbachi & Benali-Cherif, 2005; Butcher et al., 2003; Elmali et al., 2000; Warda et al., 1997).