metal-organic compounds
{4-Bromo-2-[(2-morpholinoethyl)iminomethyl]phenolato}iodido(methanol)zinc(II)
aCollege of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, People's Republic of China
*Correspondence e-mail: chengli_han@126.com
The title compound, [Zn(C13H16BrN2O2)I(CH3OH)], is a new mononuclear zinc(II) complex synthesized by the reaction of equimolar quantities of 5-bromosalicylaldehyde, 2-morpholinoethylamine and ZnI2 in methanol. The Zn atom is four-coordinate in a distorted tetrahedral geometry, binding to a phenolate O and an imine N atom of the Schiff base ligand, the O atom of a methanol molecule and one I− anion. In the adjacent molecules are linked through intermolecular O—H⋯O hydrogen bonds, forming centrosymmetric dimers.
Related literature
For the structures of related zinc(II) complexes, see: Ali et al. (2008); You (2005); Zhu & Yang (2008).
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 (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809009234/sj2595sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809009234/sj2595Isup2.hkl
Equimolar quantities (1.0 mmol each) of 5-bromosalicyaldehyde, 2-morpholinoethylamine, and ZnI2 were mixed in methanol. The mixture was stirred at reflux for 30 min and filtered. The filtrate was slowly evaporated for a few days, yielding yellow block-like crystals.
H3A was located from a difference Fourier map and refined isotropically, with the O–H distance restrained to 0.85 (1) Å, and with Uiso(H) values fixed at 0.08 Å2. The other H atoms were placed in 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 1.2 or 1.5Ueq(C).
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).[Zn(C13H16BrN2O2)I(CH4O)] | F(000) = 1040 |
Mr = 536.50 | Dx = 1.951 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3128 reflections |
a = 7.747 (2) Å | θ = 2.6–25.8° |
b = 24.977 (3) Å | µ = 5.24 mm−1 |
c = 9.598 (2) Å | T = 298 K |
β = 100.497 (4)° | Block, yellow |
V = 1826.1 (6) Å3 | 0.30 × 0.30 × 0.28 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3928 independent reflections |
Radiation source: fine-focus sealed tube | 2994 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
ω scans | θmax = 27.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −9→9 |
Tmin = 0.217, Tmax = 0.231 | k = −30→31 |
12877 measured reflections | l = −12→12 |
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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.096 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0385P)2 + 2.0556P] where P = (Fo2 + 2Fc2)/3 |
3928 reflections | (Δ/σ)max < 0.001 |
203 parameters | Δρmax = 0.96 e Å−3 |
1 restraint | Δρmin = −0.71 e Å−3 |
[Zn(C13H16BrN2O2)I(CH4O)] | V = 1826.1 (6) Å3 |
Mr = 536.50 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.747 (2) Å | µ = 5.24 mm−1 |
b = 24.977 (3) Å | T = 298 K |
c = 9.598 (2) Å | 0.30 × 0.30 × 0.28 mm |
β = 100.497 (4)° |
Bruker SMART CCD area-detector diffractometer | 3928 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2994 reflections with I > 2σ(I) |
Tmin = 0.217, Tmax = 0.231 | Rint = 0.038 |
12877 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | 1 restraint |
wR(F2) = 0.096 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.96 e Å−3 |
3928 reflections | Δρmin = −0.71 e Å−3 |
203 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 | ||
Zn1 | 0.50584 (7) | 0.55343 (2) | 0.28004 (5) | 0.03432 (14) | |
I1 | 0.17781 (4) | 0.568293 (16) | 0.25354 (4) | 0.05466 (14) | |
Br1 | 1.05025 (10) | 0.31501 (2) | 0.17245 (8) | 0.0752 (2) | |
O1 | 0.5139 (4) | 0.47117 (12) | 0.3133 (3) | 0.0403 (8) | |
O2 | 0.6023 (12) | 0.73465 (19) | 0.4160 (5) | 0.119 (3) | |
O3 | 0.6375 (4) | 0.56560 (12) | 0.4796 (3) | 0.0370 (7) | |
N1 | 0.6591 (4) | 0.54528 (13) | 0.1329 (4) | 0.0276 (7) | |
N2 | 0.5630 (5) | 0.65133 (14) | 0.2055 (4) | 0.0381 (9) | |
C1 | 0.7471 (6) | 0.45205 (16) | 0.1873 (4) | 0.0298 (9) | |
C2 | 0.6310 (6) | 0.43807 (17) | 0.2793 (5) | 0.0340 (10) | |
C3 | 0.6426 (7) | 0.38546 (18) | 0.3320 (5) | 0.0464 (13) | |
H3 | 0.5649 | 0.3747 | 0.3899 | 0.056* | |
C4 | 0.7640 (8) | 0.34916 (19) | 0.3017 (5) | 0.0502 (13) | |
H4 | 0.7691 | 0.3148 | 0.3396 | 0.060* | |
C5 | 0.8782 (7) | 0.36454 (18) | 0.2139 (5) | 0.0409 (11) | |
C6 | 0.8706 (6) | 0.41432 (18) | 0.1569 (5) | 0.0364 (10) | |
H6 | 0.9477 | 0.4237 | 0.0972 | 0.044* | |
C7 | 0.7474 (6) | 0.50294 (17) | 0.1163 (4) | 0.0310 (9) | |
H7 | 0.8209 | 0.5054 | 0.0501 | 0.037* | |
C8 | 0.6873 (6) | 0.59135 (17) | 0.0431 (5) | 0.0366 (10) | |
H8A | 0.6722 | 0.5799 | −0.0549 | 0.044* | |
H8B | 0.8066 | 0.6044 | 0.0713 | 0.044* | |
C9 | 0.5603 (6) | 0.63595 (17) | 0.0561 (4) | 0.0346 (10) | |
H9A | 0.5897 | 0.6669 | 0.0041 | 0.042* | |
H9B | 0.4426 | 0.6247 | 0.0137 | 0.042* | |
C10 | 0.4279 (9) | 0.6926 (2) | 0.2083 (6) | 0.0645 (18) | |
H10A | 0.3126 | 0.6775 | 0.1741 | 0.077* | |
H10B | 0.4458 | 0.7219 | 0.1464 | 0.077* | |
C11 | 0.4376 (14) | 0.7133 (3) | 0.3593 (8) | 0.099 (3) | |
H11A | 0.3489 | 0.7407 | 0.3593 | 0.118* | |
H11B | 0.4118 | 0.6842 | 0.4192 | 0.118* | |
C12 | 0.7298 (13) | 0.6951 (3) | 0.4179 (7) | 0.100 (3) | |
H12A | 0.7050 | 0.6656 | 0.4769 | 0.119* | |
H12B | 0.8438 | 0.7097 | 0.4592 | 0.119* | |
C13 | 0.7348 (9) | 0.6746 (2) | 0.2692 (6) | 0.0619 (16) | |
H13A | 0.7629 | 0.7038 | 0.2106 | 0.074* | |
H13B | 0.8256 | 0.6476 | 0.2735 | 0.074* | |
C14 | 0.8215 (7) | 0.5553 (2) | 0.5089 (6) | 0.0561 (14) | |
H14A | 0.8423 | 0.5183 | 0.4908 | 0.084* | |
H14B | 0.8673 | 0.5633 | 0.6064 | 0.084* | |
H14C | 0.8788 | 0.5773 | 0.4492 | 0.084* | |
H3A | 0.592 (8) | 0.554 (2) | 0.547 (4) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0288 (3) | 0.0448 (3) | 0.0309 (3) | 0.0064 (2) | 0.0093 (2) | −0.0008 (2) |
I1 | 0.02973 (19) | 0.0787 (3) | 0.0568 (2) | 0.00815 (16) | 0.01119 (16) | 0.01217 (18) |
Br1 | 0.0901 (5) | 0.0545 (4) | 0.0895 (5) | 0.0392 (3) | 0.0386 (4) | 0.0100 (3) |
O1 | 0.046 (2) | 0.0353 (17) | 0.0463 (19) | 0.0053 (14) | 0.0257 (17) | 0.0043 (14) |
O2 | 0.253 (9) | 0.041 (3) | 0.068 (3) | −0.004 (4) | 0.044 (4) | −0.013 (2) |
O3 | 0.0370 (18) | 0.0466 (19) | 0.0286 (16) | −0.0013 (14) | 0.0093 (14) | 0.0038 (14) |
N1 | 0.0282 (19) | 0.0265 (18) | 0.0288 (18) | 0.0003 (14) | 0.0067 (15) | 0.0010 (14) |
N2 | 0.053 (3) | 0.0282 (19) | 0.037 (2) | 0.0047 (17) | 0.0179 (19) | 0.0044 (15) |
C1 | 0.032 (2) | 0.030 (2) | 0.027 (2) | 0.0010 (18) | 0.0060 (19) | −0.0024 (17) |
C2 | 0.038 (3) | 0.035 (2) | 0.030 (2) | −0.0023 (19) | 0.008 (2) | −0.0002 (18) |
C3 | 0.066 (4) | 0.036 (3) | 0.044 (3) | 0.004 (2) | 0.027 (3) | 0.007 (2) |
C4 | 0.075 (4) | 0.029 (2) | 0.048 (3) | 0.005 (2) | 0.014 (3) | 0.005 (2) |
C5 | 0.046 (3) | 0.038 (3) | 0.040 (3) | 0.012 (2) | 0.010 (2) | −0.005 (2) |
C6 | 0.037 (3) | 0.037 (2) | 0.037 (2) | 0.004 (2) | 0.013 (2) | −0.0018 (19) |
C7 | 0.029 (2) | 0.038 (2) | 0.027 (2) | −0.0031 (19) | 0.0084 (18) | −0.0034 (18) |
C8 | 0.042 (3) | 0.034 (2) | 0.036 (2) | 0.000 (2) | 0.015 (2) | 0.0049 (19) |
C9 | 0.038 (3) | 0.033 (2) | 0.033 (2) | 0.0041 (19) | 0.009 (2) | 0.0095 (18) |
C10 | 0.107 (5) | 0.039 (3) | 0.057 (3) | 0.030 (3) | 0.041 (4) | 0.017 (2) |
C11 | 0.174 (10) | 0.065 (5) | 0.073 (5) | 0.055 (5) | 0.064 (6) | 0.022 (4) |
C12 | 0.196 (10) | 0.046 (4) | 0.051 (4) | −0.041 (5) | 0.007 (5) | −0.009 (3) |
C13 | 0.087 (5) | 0.046 (3) | 0.053 (3) | −0.026 (3) | 0.013 (3) | −0.005 (2) |
C14 | 0.040 (3) | 0.075 (4) | 0.050 (3) | −0.008 (3) | 0.001 (3) | 0.017 (3) |
Zn1—N1 | 2.014 (3) | C4—H4 | 0.9300 |
Zn1—O3 | 2.023 (3) | C5—C6 | 1.355 (6) |
Zn1—O1 | 2.078 (3) | C6—H6 | 0.9300 |
Zn1—I1 | 2.5346 (9) | C7—H7 | 0.9300 |
Br1—C5 | 1.913 (4) | C8—C9 | 1.507 (6) |
O1—C2 | 1.311 (5) | C8—H8A | 0.9700 |
O2—C12 | 1.394 (10) | C8—H8B | 0.9700 |
O2—C11 | 1.398 (11) | C9—H9A | 0.9700 |
O3—C14 | 1.425 (6) | C9—H9B | 0.9700 |
O3—H3A | 0.84 (5) | C10—C11 | 1.528 (9) |
N1—C7 | 1.285 (5) | C10—H10A | 0.9700 |
N1—C8 | 1.478 (5) | C10—H10B | 0.9700 |
N2—C10 | 1.472 (6) | C11—H11A | 0.9700 |
N2—C13 | 1.478 (7) | C11—H11B | 0.9700 |
N2—C9 | 1.481 (5) | C12—C13 | 1.525 (8) |
C1—C6 | 1.411 (6) | C12—H12A | 0.9700 |
C1—C2 | 1.414 (6) | C12—H12B | 0.9700 |
C1—C7 | 1.442 (6) | C13—H13A | 0.9700 |
C2—C3 | 1.405 (6) | C13—H13B | 0.9700 |
C3—C4 | 1.375 (7) | C14—H14A | 0.9600 |
C3—H3 | 0.9300 | C14—H14B | 0.9600 |
C4—C5 | 1.383 (7) | C14—H14C | 0.9600 |
N1—Zn1—O3 | 114.78 (13) | C9—C8—H8A | 109.4 |
N1—Zn1—O1 | 90.15 (12) | N1—C8—H8B | 109.4 |
O3—Zn1—O1 | 90.42 (13) | C9—C8—H8B | 109.4 |
N1—Zn1—I1 | 130.76 (10) | H8A—C8—H8B | 108.0 |
O3—Zn1—I1 | 113.36 (9) | N2—C9—C8 | 112.2 (4) |
O1—Zn1—I1 | 99.31 (9) | N2—C9—H9A | 109.2 |
C2—O1—Zn1 | 126.0 (3) | C8—C9—H9A | 109.2 |
C12—O2—C11 | 109.3 (5) | N2—C9—H9B | 109.2 |
C14—O3—Zn1 | 118.2 (3) | C8—C9—H9B | 109.2 |
C14—O3—H3A | 109 (4) | H9A—C9—H9B | 107.9 |
Zn1—O3—H3A | 118 (4) | N2—C10—C11 | 110.1 (5) |
C7—N1—C8 | 115.5 (3) | N2—C10—H10A | 109.6 |
C7—N1—Zn1 | 124.4 (3) | C11—C10—H10A | 109.6 |
C8—N1—Zn1 | 119.9 (3) | N2—C10—H10B | 109.6 |
C10—N2—C13 | 107.9 (4) | C11—C10—H10B | 109.6 |
C10—N2—C9 | 108.4 (4) | H10A—C10—H10B | 108.2 |
C13—N2—C9 | 110.8 (4) | O2—C11—C10 | 112.5 (6) |
C6—C1—C2 | 119.8 (4) | O2—C11—H11A | 109.1 |
C6—C1—C7 | 115.6 (4) | C10—C11—H11A | 109.1 |
C2—C1—C7 | 124.6 (4) | O2—C11—H11B | 109.1 |
O1—C2—C3 | 120.1 (4) | C10—C11—H11B | 109.1 |
O1—C2—C1 | 123.2 (4) | H11A—C11—H11B | 107.8 |
C3—C2—C1 | 116.7 (4) | O2—C12—C13 | 111.4 (6) |
C4—C3—C2 | 122.8 (4) | O2—C12—H12A | 109.4 |
C4—C3—H3 | 118.6 | C13—C12—H12A | 109.4 |
C2—C3—H3 | 118.6 | O2—C12—H12B | 109.4 |
C3—C4—C5 | 118.9 (4) | C13—C12—H12B | 109.4 |
C3—C4—H4 | 120.5 | H12A—C12—H12B | 108.0 |
C5—C4—H4 | 120.5 | N2—C13—C12 | 110.2 (6) |
C6—C5—C4 | 121.0 (4) | N2—C13—H13A | 109.6 |
C6—C5—Br1 | 119.3 (4) | C12—C13—H13A | 109.6 |
C4—C5—Br1 | 119.6 (4) | N2—C13—H13B | 109.6 |
C5—C6—C1 | 120.7 (4) | C12—C13—H13B | 109.6 |
C5—C6—H6 | 119.7 | H13A—C13—H13B | 108.1 |
C1—C6—H6 | 119.7 | O3—C14—H14A | 109.5 |
N1—C7—C1 | 128.3 (4) | O3—C14—H14B | 109.5 |
N1—C7—H7 | 115.8 | H14A—C14—H14B | 109.5 |
C1—C7—H7 | 115.8 | O3—C14—H14C | 109.5 |
N1—C8—C9 | 111.1 (3) | H14A—C14—H14C | 109.5 |
N1—C8—H8A | 109.4 | H14B—C14—H14C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···O1i | 0.84 (5) | 1.81 (5) | 2.649 (4) | 178 (7) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C13H16BrN2O2)I(CH4O)] |
Mr | 536.50 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 7.747 (2), 24.977 (3), 9.598 (2) |
β (°) | 100.497 (4) |
V (Å3) | 1826.1 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 5.24 |
Crystal size (mm) | 0.30 × 0.30 × 0.28 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.217, 0.231 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12877, 3928, 2994 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.096, 1.03 |
No. of reflections | 3928 |
No. of parameters | 203 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.96, −0.71 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Zn1—N1 | 2.014 (3) | Zn1—O1 | 2.078 (3) |
Zn1—O3 | 2.023 (3) | Zn1—I1 | 2.5346 (9) |
N1—Zn1—O3 | 114.78 (13) | N1—Zn1—I1 | 130.76 (10) |
N1—Zn1—O1 | 90.15 (12) | O3—Zn1—I1 | 113.36 (9) |
O3—Zn1—O1 | 90.42 (13) | O1—Zn1—I1 | 99.31 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···O1i | 0.84 (5) | 1.81 (5) | 2.649 (4) | 178 (7) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
The author acknowledges a research grant from Qiqihar University.
References
Ali, H. M., Mohamed Mustafa, M. I., Rizal, M. R. & Ng, S. W. (2008). Acta Cryst. E64, m718–m719. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Bruker (1998). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
You, Z.-L. (2005). Acta Cryst. E61, m1571–m1573. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, X.-W. & Yang, X.-Z. (2008). Acta Cryst. E64, m1090–m1091. Web of Science CSD CrossRef IUCr Journals Google Scholar
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Metal complexes of the Schiff base 4-bromo-2-[(2-morpholinoethylimino)methyl]phenol have not been reported previously. In this paper, the author reports the crystal structure of the title compound, a new mononuclear zinc(II) complex, (I), Fig. 1.
In (I), the Zn atom is four-coordinate in a tetrahedral geometry, with one O and one imine N atoms of a Schiff base ligand, one O atom of a methanol molecule, and one I atom. The tetrahedral geometry is severely distorted, as evidenced by the coordinate bond lengths and angles (Table 1). The bond lengths and angles in this complex are comparable with those in the similar zinc(II) complexes (Ali et al., 2008; You, 2005; Zhu & Yang, 2008). In the crystal structure, adjacent molecules are linked through intermolecular O–H···O hydrogen bonds (Table 2), forming centrosymmetric dimers (Fig. 2).