Dibromo­{2-[2-(methyl­amino)ethyl­imino­meth­yl]phenolato}zinc(II)

In the title mononuclear Schiff base zinc(II) complex, [ZnBr₂(C₁₀H₁₄N₂O)], the Zn^II ion is coordinated by one O atom and one imine N atom of the Schiff base ligand and by two bromide anions, giving a four-coordinate tetra­hedral geometry. The crystal structure is stabilized by inter­molecular N—H...O and N—H...Br hydrogen bonds.

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean [sigma](C-C) = 0.007 Å
• R factor = 0.041
• wR factor = 0.087
• Data-to-parameter ratio = 21.6

checkCIF/PLATON results

No syntax errors found



Alert level C
PLAT062_ALERT_4_C Rescale T(min) & T(max) by .....................       0.81
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X)  Br1    -   Zn1     ..       6.66 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X)  Br2    -   Zn1     ..       6.05 su
PLAT341_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...          7
PLAT480_ALERT_4_C Long H...A H-Bond Reported H2B    ..  BR1     ..       2.96 Ang.

Alert level G
ABSTM02_ALERT_3_G  When printed, the submitted absorption T values will be
            replaced by the scaled T values. Since the ratio of scaled T's
            is identical to the ratio of reported T values, the scaling
            does not imply a change to the absorption corrections used in
            the study.
            Ratio of Tmax expected/reported      0.813
            Tmax scaled      0.324 Tmin scaled      0.280

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   5 ALERT level C = Check and explain
   1 ALERT level G = General alerts; check

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion

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Computing details

Data collection: SMART (Bruker, 1998); cell refinement: SMART; data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL.

Dibromo{2-[2-(methylamino)ethyliminomethyl]phenolato}zinc(II)

Crystal data

[ZnBr2(C10H14N2O)]	F(000) = 784
Mr = 403.42	Dx = 1.932 Mg m^−3
Monoclinic, P21/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 2187 reflections
a = 10.599 (2) Å	θ = 2.2–24.3°
b = 7.426 (1) Å	µ = 7.52 mm^−1
c = 17.624 (3) Å	T = 298 K
β = 90.990 (2)°	Block, colourless
V = 1387.0 (4) Å^3	0.18 × 0.16 × 0.15 mm
Z = 4

Data collection

Bruker SMART CCD area-detector diffractometer	3155 independent reflections
Radiation source: fine-focus sealed tube	2089 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.055
ω scans	θmax = 27.5°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −13→13
Tmin = 0.345, Tmax = 0.399	k = −9→9
11411 measured reflections	l = −22→22

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.041	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.087	H-atom parameters constrained
S = 1.00	w = 1/[σ^2(Fo^2) + (0.0298P)^2] where P = (Fo^2 + 2Fc^2)/3
3155 reflections	(Δ/σ)max < 0.001
146 parameters	Δρmax = 0.73 e Å^−3
0 restraints	Δρmin = −0.56 e Å^−3

Special details

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 (Ų)

	x	y	z	Uiso*/Ueq
Zn1	0.22416 (5)	0.77873 (6)	0.07444 (3)	0.03927 (15)
Br1	0.13091 (4)	0.85706 (6)	−0.04589 (2)	0.04552 (15)
Br2	0.43756 (5)	0.70139 (7)	0.07606 (4)	0.06977 (19)
O1	0.1201 (3)	0.5978 (4)	0.12196 (16)	0.0470 (8)
N1	0.1909 (3)	0.9767 (4)	0.14881 (18)	0.0342 (8)
N2	0.1792 (3)	1.2885 (4)	0.03809 (19)	0.0394 (8)
H2A	0.1516	1.3805	0.0666	0.047*
H2B	0.1188	1.2033	0.0372	0.047*
C1	0.0292 (4)	0.8014 (5)	0.2131 (2)	0.0372 (10)
C2	0.0416 (4)	0.6318 (6)	0.1778 (2)	0.0381 (10)
C3	−0.0318 (4)	0.4909 (7)	0.2046 (3)	0.0511 (12)
H3	−0.0253	0.3780	0.1822	0.061*
C4	−0.1133 (5)	0.5146 (8)	0.2633 (3)	0.0672 (16)
H4	−0.1600	0.4175	0.2807	0.081*
C5	−0.1265 (5)	0.6812 (9)	0.2967 (3)	0.0743 (17)
H5	−0.1833	0.6968	0.3358	0.089*
C6	−0.0572 (5)	0.8217 (7)	0.2726 (3)	0.0590 (14)
H6	−0.0665	0.9336	0.2955	0.071*
C7	0.1065 (4)	0.9578 (5)	0.1986 (2)	0.0398 (10)
H7	0.0927	1.0571	0.2295	0.048*
C8	0.2715 (4)	1.1373 (5)	0.1514 (3)	0.0467 (11)
H8A	0.3518	1.1065	0.1753	0.056*
H8B	0.2319	1.2286	0.1823	0.056*
C9	0.2947 (4)	1.2132 (5)	0.0738 (2)	0.0401 (10)
H9A	0.3581	1.3070	0.0777	0.048*
H9B	0.3274	1.1188	0.0416	0.048*
C10	0.1994 (5)	1.3534 (6)	−0.0402 (2)	0.0554 (13)
H10A	0.2676	1.4384	−0.0401	0.083*
H10B	0.1238	1.4105	−0.0590	0.083*
H10C	0.2197	1.2533	−0.0722	0.083*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Zn1	0.0444 (3)	0.0342 (3)	0.0394 (3)	−0.0059 (2)	0.0089 (2)	−0.0033 (2)
Br1	0.0458 (3)	0.0525 (3)	0.0384 (3)	−0.0036 (2)	0.0038 (2)	−0.0052 (2)
Br2	0.0451 (3)	0.0602 (4)	0.1042 (5)	0.0052 (3)	0.0046 (3)	−0.0034 (3)
O1	0.061 (2)	0.0384 (17)	0.0423 (18)	−0.0097 (15)	0.0180 (15)	−0.0053 (13)
N1	0.042 (2)	0.0299 (18)	0.0304 (19)	0.0010 (15)	−0.0035 (16)	−0.0006 (14)
N2	0.036 (2)	0.0368 (19)	0.045 (2)	−0.0044 (16)	−0.0044 (17)	−0.0009 (16)
C1	0.039 (3)	0.043 (3)	0.030 (2)	0.008 (2)	0.0014 (19)	0.0058 (18)
C2	0.034 (2)	0.049 (3)	0.031 (2)	−0.001 (2)	−0.0010 (19)	0.008 (2)
C3	0.051 (3)	0.059 (3)	0.043 (3)	−0.017 (2)	−0.002 (2)	0.006 (2)
C4	0.045 (3)	0.093 (4)	0.063 (4)	−0.019 (3)	0.009 (3)	0.026 (3)
C5	0.047 (3)	0.102 (5)	0.075 (4)	0.007 (3)	0.030 (3)	0.011 (4)
C6	0.055 (3)	0.071 (4)	0.052 (3)	0.018 (3)	0.013 (3)	0.001 (3)
C7	0.051 (3)	0.034 (2)	0.034 (2)	0.011 (2)	−0.009 (2)	−0.0030 (18)
C8	0.048 (3)	0.041 (2)	0.051 (3)	−0.006 (2)	−0.012 (2)	−0.006 (2)
C9	0.035 (2)	0.033 (2)	0.052 (3)	−0.008 (2)	−0.007 (2)	0.002 (2)
C10	0.073 (4)	0.053 (3)	0.039 (3)	−0.007 (3)	−0.005 (2)	0.008 (2)

Geometric parameters (Å, º)

Zn1—O1	1.938 (3)	C3—H3	0.9300
Zn1—N1	2.005 (3)	C4—C5	1.378 (7)
Zn1—Br2	2.3334 (9)	C4—H4	0.9300
Zn1—Br1	2.3959 (8)	C5—C6	1.348 (7)
O1—C2	1.323 (5)	C5—H5	0.9300
N1—C7	1.272 (5)	C6—H6	0.9300
N1—C8	1.467 (5)	C7—H7	0.9300
N2—C9	1.476 (5)	C8—C9	1.504 (6)
N2—C10	1.480 (5)	C8—H8A	0.9700
N2—H2A	0.9000	C8—H8B	0.9700
N2—H2B	0.9000	C9—H9A	0.9700
C1—C6	1.412 (6)	C9—H9B	0.9700
C1—C2	1.412 (6)	C10—H10A	0.9600
C1—C7	1.447 (6)	C10—H10B	0.9600
C2—C3	1.391 (6)	C10—H10C	0.9600
C3—C4	1.370 (6)
O1—Zn1—N1	96.78 (13)	C6—C5—C4	120.0 (5)
O1—Zn1—Br2	112.53 (10)	C6—C5—H5	120.0
N1—Zn1—Br2	110.72 (10)	C4—C5—H5	120.0
O1—Zn1—Br1	108.76 (9)	C5—C6—C1	121.0 (5)
N1—Zn1—Br1	109.04 (9)	C5—C6—H6	119.5
Br2—Zn1—Br1	117.10 (3)	C1—C6—H6	119.5
C2—O1—Zn1	124.0 (3)	N1—C7—C1	128.2 (4)
C7—N1—C8	119.0 (4)	N1—C7—H7	115.9
C7—N1—Zn1	120.3 (3)	C1—C7—H7	115.9
C8—N1—Zn1	120.5 (3)	N1—C8—C9	112.3 (3)
C9—N2—C10	112.9 (4)	N1—C8—H8A	109.1
C9—N2—H2A	109.0	C9—C8—H8A	109.1
C10—N2—H2A	109.0	N1—C8—H8B	109.1
C9—N2—H2B	109.0	C9—C8—H8B	109.1
C10—N2—H2B	109.0	H8A—C8—H8B	107.9
H2A—N2—H2B	107.8	N2—C9—C8	112.5 (4)
C6—C1—C2	119.3 (4)	N2—C9—H9A	109.1
C6—C1—C7	115.0 (4)	C8—C9—H9A	109.1
C2—C1—C7	125.5 (4)	N2—C9—H9B	109.1
O1—C2—C3	118.1 (4)	C8—C9—H9B	109.1
O1—C2—C1	124.2 (4)	H9A—C9—H9B	107.8
C3—C2—C1	117.6 (4)	N2—C10—H10A	109.5
C4—C3—C2	121.5 (5)	N2—C10—H10B	109.5
C4—C3—H3	119.2	H10A—C10—H10B	109.5
C2—C3—H3	119.2	N2—C10—H10C	109.5
C3—C4—C5	120.5 (5)	H10A—C10—H10C	109.5
C3—C4—H4	119.8	H10B—C10—H10C	109.5
C5—C4—H4	119.8

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
N2—H2B···Br1	0.90	2.96	3.562 (3)	126
N2—H2B···Br1^i	0.90	2.69	3.465 (3)	145
N2—H2A···O1^ii	0.90	1.92	2.808 (4)	170

Symmetry codes: (i) −x, −y+2, −z; (ii) x, y+1, z.