metal-organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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{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

(Received 10 March 2009; accepted 12 March 2009; online 19 March 2009)

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 crystal structure, 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[Ali, H. M., Mohamed Mustafa, M. I., Rizal, M. R. & Ng, S. W. (2008). Acta Cryst. E64, m718-m719.]); You (2005[You, Z.-L. (2005). Acta Cryst. E61, m1571-m1573.]); Zhu & Yang (2008[Zhu, X.-W. & Yang, X.-Z. (2008). Acta Cryst. E64, m1090-m1091.]).

[Scheme 1]

Experimental

Crystal data
  • [Zn(C13H16BrN2O2)I(CH4O)]

  • Mr = 536.50

  • Monoclinic, P 21 /c

  • a = 7.747 (2) Å

  • b = 24.977 (3) Å

  • c = 9.598 (2) Å

  • β = 100.497 (4)°

  • V = 1826.1 (6) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 5.24 mm−1

  • T = 298 K

  • 0.30 × 0.30 × 0.28 mm

Data collection
  • Bruker SMART CCD area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.217, Tmax = 0.231

  • 12877 measured reflections

  • 3928 independent reflections

  • 2994 reflections with I > 2σ(I)

  • Rint = 0.038

Refinement
  • R[F2 > 2σ(F2)] = 0.040

  • wR(F2) = 0.096

  • S = 1.03

  • 3928 reflections

  • 203 parameters

  • 1 restraint

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.96 e Å−3

  • Δρmin = −0.71 e Å−3

Table 1
Selected geometric parameters (Å, °)

Zn1—N1 2.014 (3)
Zn1—O3 2.023 (3)
Zn1—O1 2.078 (3)
Zn1—I1 2.5346 (9)
N1—Zn1—O3 114.78 (13)
N1—Zn1—O1 90.15 (12)
O3—Zn1—O1 90.42 (13)
N1—Zn1—I1 130.76 (10)
O3—Zn1—I1 113.36 (9)
O1—Zn1—I1 99.31 (9)

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA 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.

Data collection: SMART (Bruker, 1998[Bruker (1998). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 1998[Bruker (1998). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXTL.

Supporting information


Comment top

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).

Related literature top

For the structures of related zinc(II) complexes, see: Ali et al. (2008); You (2005); Zhu & Yang (2008).

Experimental top

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.

Refinement top

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).

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: 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).

Figures top
[Figure 1] Fig. 1. The structure of the complex, showing 30% probability displacement ellipsoids and the atom-numbering scheme.
[Figure 2] Fig. 2. The crystal packing of (I) showing the formation of centrosymmetric dimers. Hydrogen bonds are shown as dashed lines.
{4-Bromo-2-[(2-morpholinoethyl)iminomethyl]phenolato}iodido(methanol)zinc(II) top
Crystal data top
[Zn(C13H16BrN2O2)I(CH4O)]F(000) = 1040
Mr = 536.50Dx = 1.951 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 3128 reflections
a = 7.747 (2) Åθ = 2.6–25.8°
b = 24.977 (3) ŵ = 5.24 mm1
c = 9.598 (2) ÅT = 298 K
β = 100.497 (4)°Block, yellow
V = 1826.1 (6) Å30.30 × 0.30 × 0.28 mm
Z = 4
Data collection top
Bruker SMART CCD area-detector
diffractometer
3928 independent reflections
Radiation source: fine-focus sealed tube2994 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.038
ω scansθmax = 27.0°, θmin = 1.6°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 99
Tmin = 0.217, Tmax = 0.231k = 3031
12877 measured reflectionsl = 1212
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.040Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.096H 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 parametersΔρmax = 0.96 e Å3
1 restraintΔρmin = 0.71 e Å3
Crystal data top
[Zn(C13H16BrN2O2)I(CH4O)]V = 1826.1 (6) Å3
Mr = 536.50Z = 4
Monoclinic, P21/cMo Kα radiation
a = 7.747 (2) ŵ = 5.24 mm1
b = 24.977 (3) ÅT = 298 K
c = 9.598 (2) Å0.30 × 0.30 × 0.28 mm
β = 100.497 (4)°
Data collection top
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 = 0.231Rint = 0.038
12877 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0401 restraint
wR(F2) = 0.096H atoms treated by a mixture of independent and constrained refinement
S = 1.03Δρmax = 0.96 e Å3
3928 reflectionsΔρmin = 0.71 e Å3
203 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Zn10.50584 (7)0.55343 (2)0.28004 (5)0.03432 (14)
I10.17781 (4)0.568293 (16)0.25354 (4)0.05466 (14)
Br11.05025 (10)0.31501 (2)0.17245 (8)0.0752 (2)
O10.5139 (4)0.47117 (12)0.3133 (3)0.0403 (8)
O20.6023 (12)0.73465 (19)0.4160 (5)0.119 (3)
O30.6375 (4)0.56560 (12)0.4796 (3)0.0370 (7)
N10.6591 (4)0.54528 (13)0.1329 (4)0.0276 (7)
N20.5630 (5)0.65133 (14)0.2055 (4)0.0381 (9)
C10.7471 (6)0.45205 (16)0.1873 (4)0.0298 (9)
C20.6310 (6)0.43807 (17)0.2793 (5)0.0340 (10)
C30.6426 (7)0.38546 (18)0.3320 (5)0.0464 (13)
H30.56490.37470.38990.056*
C40.7640 (8)0.34916 (19)0.3017 (5)0.0502 (13)
H40.76910.31480.33960.060*
C50.8782 (7)0.36454 (18)0.2139 (5)0.0409 (11)
C60.8706 (6)0.41432 (18)0.1569 (5)0.0364 (10)
H60.94770.42370.09720.044*
C70.7474 (6)0.50294 (17)0.1163 (4)0.0310 (9)
H70.82090.50540.05010.037*
C80.6873 (6)0.59135 (17)0.0431 (5)0.0366 (10)
H8A0.67220.57990.05490.044*
H8B0.80660.60440.07130.044*
C90.5603 (6)0.63595 (17)0.0561 (4)0.0346 (10)
H9A0.58970.66690.00410.042*
H9B0.44260.62470.01370.042*
C100.4279 (9)0.6926 (2)0.2083 (6)0.0645 (18)
H10A0.31260.67750.17410.077*
H10B0.44580.72190.14640.077*
C110.4376 (14)0.7133 (3)0.3593 (8)0.099 (3)
H11A0.34890.74070.35930.118*
H11B0.41180.68420.41920.118*
C120.7298 (13)0.6951 (3)0.4179 (7)0.100 (3)
H12A0.70500.66560.47690.119*
H12B0.84380.70970.45920.119*
C130.7348 (9)0.6746 (2)0.2692 (6)0.0619 (16)
H13A0.76290.70380.21060.074*
H13B0.82560.64760.27350.074*
C140.8215 (7)0.5553 (2)0.5089 (6)0.0561 (14)
H14A0.84230.51830.49080.084*
H14B0.86730.56330.60640.084*
H14C0.87880.57730.44920.084*
H3A0.592 (8)0.554 (2)0.547 (4)0.080*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Zn10.0288 (3)0.0448 (3)0.0309 (3)0.0064 (2)0.0093 (2)0.0008 (2)
I10.02973 (19)0.0787 (3)0.0568 (2)0.00815 (16)0.01119 (16)0.01217 (18)
Br10.0901 (5)0.0545 (4)0.0895 (5)0.0392 (3)0.0386 (4)0.0100 (3)
O10.046 (2)0.0353 (17)0.0463 (19)0.0053 (14)0.0257 (17)0.0043 (14)
O20.253 (9)0.041 (3)0.068 (3)0.004 (4)0.044 (4)0.013 (2)
O30.0370 (18)0.0466 (19)0.0286 (16)0.0013 (14)0.0093 (14)0.0038 (14)
N10.0282 (19)0.0265 (18)0.0288 (18)0.0003 (14)0.0067 (15)0.0010 (14)
N20.053 (3)0.0282 (19)0.037 (2)0.0047 (17)0.0179 (19)0.0044 (15)
C10.032 (2)0.030 (2)0.027 (2)0.0010 (18)0.0060 (19)0.0024 (17)
C20.038 (3)0.035 (2)0.030 (2)0.0023 (19)0.008 (2)0.0002 (18)
C30.066 (4)0.036 (3)0.044 (3)0.004 (2)0.027 (3)0.007 (2)
C40.075 (4)0.029 (2)0.048 (3)0.005 (2)0.014 (3)0.005 (2)
C50.046 (3)0.038 (3)0.040 (3)0.012 (2)0.010 (2)0.005 (2)
C60.037 (3)0.037 (2)0.037 (2)0.004 (2)0.013 (2)0.0018 (19)
C70.029 (2)0.038 (2)0.027 (2)0.0031 (19)0.0084 (18)0.0034 (18)
C80.042 (3)0.034 (2)0.036 (2)0.000 (2)0.015 (2)0.0049 (19)
C90.038 (3)0.033 (2)0.033 (2)0.0041 (19)0.009 (2)0.0095 (18)
C100.107 (5)0.039 (3)0.057 (3)0.030 (3)0.041 (4)0.017 (2)
C110.174 (10)0.065 (5)0.073 (5)0.055 (5)0.064 (6)0.022 (4)
C120.196 (10)0.046 (4)0.051 (4)0.041 (5)0.007 (5)0.009 (3)
C130.087 (5)0.046 (3)0.053 (3)0.026 (3)0.013 (3)0.005 (2)
C140.040 (3)0.075 (4)0.050 (3)0.008 (3)0.001 (3)0.017 (3)
Geometric parameters (Å, º) top
Zn1—N12.014 (3)C4—H40.9300
Zn1—O32.023 (3)C5—C61.355 (6)
Zn1—O12.078 (3)C6—H60.9300
Zn1—I12.5346 (9)C7—H70.9300
Br1—C51.913 (4)C8—C91.507 (6)
O1—C21.311 (5)C8—H8A0.9700
O2—C121.394 (10)C8—H8B0.9700
O2—C111.398 (11)C9—H9A0.9700
O3—C141.425 (6)C9—H9B0.9700
O3—H3A0.84 (5)C10—C111.528 (9)
N1—C71.285 (5)C10—H10A0.9700
N1—C81.478 (5)C10—H10B0.9700
N2—C101.472 (6)C11—H11A0.9700
N2—C131.478 (7)C11—H11B0.9700
N2—C91.481 (5)C12—C131.525 (8)
C1—C61.411 (6)C12—H12A0.9700
C1—C21.414 (6)C12—H12B0.9700
C1—C71.442 (6)C13—H13A0.9700
C2—C31.405 (6)C13—H13B0.9700
C3—C41.375 (7)C14—H14A0.9600
C3—H30.9300C14—H14B0.9600
C4—C51.383 (7)C14—H14C0.9600
N1—Zn1—O3114.78 (13)C9—C8—H8A109.4
N1—Zn1—O190.15 (12)N1—C8—H8B109.4
O3—Zn1—O190.42 (13)C9—C8—H8B109.4
N1—Zn1—I1130.76 (10)H8A—C8—H8B108.0
O3—Zn1—I1113.36 (9)N2—C9—C8112.2 (4)
O1—Zn1—I199.31 (9)N2—C9—H9A109.2
C2—O1—Zn1126.0 (3)C8—C9—H9A109.2
C12—O2—C11109.3 (5)N2—C9—H9B109.2
C14—O3—Zn1118.2 (3)C8—C9—H9B109.2
C14—O3—H3A109 (4)H9A—C9—H9B107.9
Zn1—O3—H3A118 (4)N2—C10—C11110.1 (5)
C7—N1—C8115.5 (3)N2—C10—H10A109.6
C7—N1—Zn1124.4 (3)C11—C10—H10A109.6
C8—N1—Zn1119.9 (3)N2—C10—H10B109.6
C10—N2—C13107.9 (4)C11—C10—H10B109.6
C10—N2—C9108.4 (4)H10A—C10—H10B108.2
C13—N2—C9110.8 (4)O2—C11—C10112.5 (6)
C6—C1—C2119.8 (4)O2—C11—H11A109.1
C6—C1—C7115.6 (4)C10—C11—H11A109.1
C2—C1—C7124.6 (4)O2—C11—H11B109.1
O1—C2—C3120.1 (4)C10—C11—H11B109.1
O1—C2—C1123.2 (4)H11A—C11—H11B107.8
C3—C2—C1116.7 (4)O2—C12—C13111.4 (6)
C4—C3—C2122.8 (4)O2—C12—H12A109.4
C4—C3—H3118.6C13—C12—H12A109.4
C2—C3—H3118.6O2—C12—H12B109.4
C3—C4—C5118.9 (4)C13—C12—H12B109.4
C3—C4—H4120.5H12A—C12—H12B108.0
C5—C4—H4120.5N2—C13—C12110.2 (6)
C6—C5—C4121.0 (4)N2—C13—H13A109.6
C6—C5—Br1119.3 (4)C12—C13—H13A109.6
C4—C5—Br1119.6 (4)N2—C13—H13B109.6
C5—C6—C1120.7 (4)C12—C13—H13B109.6
C5—C6—H6119.7H13A—C13—H13B108.1
C1—C6—H6119.7O3—C14—H14A109.5
N1—C7—C1128.3 (4)O3—C14—H14B109.5
N1—C7—H7115.8H14A—C14—H14B109.5
C1—C7—H7115.8O3—C14—H14C109.5
N1—C8—C9111.1 (3)H14A—C14—H14C109.5
N1—C8—H8A109.4H14B—C14—H14C109.5
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O3—H3A···O1i0.84 (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)]
Mr536.50
Crystal system, space groupMonoclinic, P21/c
Temperature (K)298
a, b, c (Å)7.747 (2), 24.977 (3), 9.598 (2)
β (°) 100.497 (4)
V3)1826.1 (6)
Z4
Radiation typeMo Kα
µ (mm1)5.24
Crystal size (mm)0.30 × 0.30 × 0.28
Data collection
DiffractometerBruker SMART CCD area-detector
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.217, 0.231
No. of measured, independent and
observed [I > 2σ(I)] reflections
12877, 3928, 2994
Rint0.038
(sin θ/λ)max1)0.639
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.040, 0.096, 1.03
No. of reflections3928
No. of parameters203
No. of restraints1
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.96, 0.71

Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Selected geometric parameters (Å, º) top
Zn1—N12.014 (3)Zn1—O12.078 (3)
Zn1—O32.023 (3)Zn1—I12.5346 (9)
N1—Zn1—O3114.78 (13)N1—Zn1—I1130.76 (10)
N1—Zn1—O190.15 (12)O3—Zn1—I1113.36 (9)
O3—Zn1—O190.42 (13)O1—Zn1—I199.31 (9)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O3—H3A···O1i0.84 (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

First citationAli, 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
First citationBruker (1998). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationSheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationYou, Z.-L. (2005). Acta Cryst. E61, m1571–m1573.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationZhu, X.-W. & Yang, X.-Z. (2008). Acta Cryst. E64, m1090–m1091.  Web of Science CSD CrossRef IUCr Journals Google Scholar

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