A dinuclear zinc complex with (E)-4-dimethyl­amino-N′-(2-hy­droxy­benzyl­idene)benzohydrazide

Ma, J.; Fan, W.-Z.; Lin, L.-R.

doi:10.1107/S1600536811014462

metal-organic compounds

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ISSN: 2056-9890

Volume 67| Part 5| May 2011| Pages m624-m625

doi:10.1107/S1600536811014462

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A dinuclear zinc complex with (E)-4-dimethylamino-N′-(2-hydroxybenzylidene)benzohydrazide

Jie Ma,^a Wei-Zhen Fan ^a and Li-Rong Lin ^a ^*

^aDepartment of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
^*Correspondence e-mail: linlr@xmu.edu.cn

(Received 8 April 2011; accepted 18 April 2011; online 22 April 2011)

The title compound, bis[μ-(E)-2-({2-[4-(dimethylamino)benzoyl]hydrazinylidene}methyl)phenolato]bis[formatozinc], [Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)₂], is a dinuclear Zn^II complex containing two Zn^II cations, two monovalent anions of a Schiff base ligand, 4-dimethylamino-N′-(2-hydroxybenzylidene)benzohydrazide (L), and two formate ions. Each Zn^II atom chelates with the hydroxy O atom of salicylaldehyde, the imine N atom, the carbonyl O atom, the formate carboxylate O atom and the hydroxy O atom of the salicylaldehyde moiety in a symmetry-related unit. The five-coordinate Zn^II atoms form a dimeric centrosymmetric unit with a central parallelepiped Zn₂O₂ core and parallel faces derived from the Schiff base ligands. The crystal packing is stabilized by intermolecular N—H⋯O hydrogen bonds between the amide N atom and the formate carboxylate O atom.

Related literature

For details of Zn complexes and related applications, see: Shamsipur et al. (2001 ); Cametti et al. (2008 ); Winter et al. (2009 ); Shi et al. (2009 ); Rai et al. (2009 ). For potential applications in luminescence materials, see: Erxleben (2001 ). For recent advances in biosensory and medicinal therapeutic applications of Zn^II complexes, see: Drewry & Gunning (2011 ). For other applications of Schiff base–zinc complexes, see: Costamagna et al. (1992 ); Sunatsuki et al. (2002 ); Jiang et al. (2010 ); Li et al. (2010 ). For details of the synthesis of the Schiff base ligand, see: Pouralimardan et al. (2007 ). For related literature on zinc complex applications, see: Consiglio et al. (2010 ); Kwok et al. (2004 ).

Experimental

Crystal data

[Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)₂]
M_r = 785.41
Monoclinic, P 2₁ /n
a = 14.556 (3) Å
b = 6.7607 (14) Å
c = 17.085 (3) Å
β = 101.63 (3)°
V = 1646.8 (6) Å³
Z = 2
Mo Kα radiation
μ = 1.52 mm⁻¹
T = 173 K
0.10 × 0.10 × 0.08 mm

Data collection

Rigaku R-AXIS RAPID diffractometer
Absorption correction: multi-scan (ABSCOR; Higashi, 1995 ) T_min = 0.863, T_max = 0.888
13433 measured reflections
3213 independent reflections
2679 reflections with I > 2σ(I)
R_int = 0.032

Refinement

R[F² > 2σ(F²)] = 0.028
wR(F²) = 0.077
S = 1.07
3213 reflections
228 parameters
H-atom parameters constrained
Δρ_max = 0.33 e Å⁻³
Δρ_min = −0.30 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H8⋯O3ⁱ	0.88	2.00	2.838 (2)	158
Symmetry code: (i) x, y+1, z.

Data collection: RAPID-AUTO (Rigaku, 2004 ); cell refinement: RAPID-AUTO; data reduction: RAPID-AUTO; 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: SHELXL97.

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536811014462/jj2088sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536811014462/jj2088Isup2.hkl

Supporting information file. DOI: 10.1107/S1600536811014462/jj2088Isup3.cdx

checkCIF report

Comment top

Zinc(II) Schiff base compounds, which are thermally stable, structurally diverse and easily modified, have attracted great interest due to their potential applications in luminescence materials (Andrea, 2001), biosensory and medicinal therapeutic (Drewry & Gunning, 2011). As part of our ongoing work in the biosensory area, the title Zn-Schiff base complex was synthesized by solvothermal methods and the crystal structure is herein reported. The title molecule consists of two subparallel, tridentate Schiff base ligands, two five coodinate zinc cations and two formyl groups (from the decomposion of dimethylformamide (DMF)). The center plane assumes a parallelogram geometry which is comprised of the alternate atoms of Zn and O atoms (Fig. 1). Crystal packing is stabilized by weak N—H···O intermolecular hydrogen bonds between the amide nitrogen atom and the formate carboxyl oxygen atom (Table 1).

Related literature top

For details of Zn complexes and related applications, see: Shamsipur et al. (2001); Cametti et al. (2008); Winter et al. (2009); Shi et al. (2009); Rai et al. (2009). For potential applications in luminescence materials, see: Andrea (2001). For recent advances in biosensory and medicinal therapeutic applications of Zn^II complexes, see: Drewry & Gunning (2011). For other applications of Schiff base–zinc complexes, see: Costamagna et al.(1992); Sunatsuki et al. (2002); Jiang et al. (2010); Li et al. (2010). For details of the synthesis of the Schiff base ligand, see: Pouralimardan et al. (2007).

For related literature [on what subject?], see: Erxleben (2001); Consiglio et al. (2010); Kwok et al. (2004).

Experimental top

A mixture of ethyl-4-(dimethylamino) benzoate(10 mmol) and hydrazinium hydroxide (50%, 70ml) was stirred at 120 °C for 3h and then filtered. The resulting white residues were recrystallization by ethanol. Then, 2-hydroxybenzaldehyde (2 mmol) was added to the solution of the above powder (2 mmol) in 50 ml ethanol and refluxed for 3h to obtain the crude product. The crude product was purified by recrystallization with the ethanol and dichloromethane mixed solvent(v/v=2:1) to give white solid Schiff base ligand (N-(2-hydroxybenzylidene)-4-(dimethylamino)benzohydrazide, HL) with 85% yield. A DMF solution containing HL (0.2 mmol) and Zn(ClO₄)₂^.6H₂O (0.1 mmol) was stirred at room temperature for 5h and then was sealed in a 20 ml Teflon-lined stainless-steel autoclave, which was heated to 110^o and kept at this temperature for 35h. Yellow block crystals were obtained after the reactor was cooled to room temperature in about 40h.

Computing details top

Data collection: RAPID-AUTO (Rigaku, 2004); cell refinement: RAPID-AUTO (Rigaku, 2004); data reduction: RAPID-AUTO (Rigaku, 2004); 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: SHELXL97 (Sheldrick, 2008).

Figures top

Fig. 1. Thermal ellipsoid plot of the title compound at the 30% probability level. Hydrogen atoms are removed for clarity.

bis[µ-(E)-2-({2-[4- (dimethylamino)benzoyl]hydrazinylidene}methyl)phenolato]bis[formatozinc] top

Crystal data top

[Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)₂]	F(000) = 808
M_r = 785.41	D_x = 1.584 Mg m⁻³
Monoclinic, P2₁/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 11481 reflections
a = 14.556 (3) Å	θ = 6.1–55.0°
b = 6.7607 (14) Å	µ = 1.52 mm⁻¹
c = 17.085 (3) Å	T = 173 K
β = 101.63 (3)°	Block, yellow
V = 1646.8 (6) Å³	0.10 × 0.10 × 0.08 mm
Z = 2

Data collection top

Rigaku R-AXIS RAPID diffractometer	3213 independent reflections
Radiation source: Rotating anode	2679 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.032
ω scans	θ_max = 26.0°, θ_min = 3.3°
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	h = −17→17
T_min = 0.863, T_max = 0.888	k = −8→8
13433 measured reflections	l = −21→21

Refinement top

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)] = 0.028	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.077	H-atom parameters constrained
S = 1.07	w = 1/[σ²(F_o²) + (0.0452P)² + 0.0838P] where P = (F_o² + 2F_c²)/3
3213 reflections	(Δ/σ)_max = 0.002
228 parameters	Δρ_max = 0.33 e Å⁻³
0 restraints	Δρ_min = −0.30 e Å⁻³

Crystal data top

[Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)₂]	V = 1646.8 (6) Å³
M_r = 785.41	Z = 2
Monoclinic, P2₁/n	Mo Kα radiation
a = 14.556 (3) Å	µ = 1.52 mm⁻¹
b = 6.7607 (14) Å	T = 173 K
c = 17.085 (3) Å	0.10 × 0.10 × 0.08 mm
β = 101.63 (3)°

Data collection top

Rigaku R-AXIS RAPID diffractometer	3213 independent reflections
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	2679 reflections with I > 2σ(I)
T_min = 0.863, T_max = 0.888	R_int = 0.032
13433 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.028	0 restraints
wR(F²) = 0.077	H-atom parameters constrained
S = 1.07	Δρ_max = 0.33 e Å⁻³
3213 reflections	Δρ_min = −0.30 e Å⁻³
228 parameters

Special details top

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 > 2sigma(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

	x	y	z	U_iso*/U_eq
Zn1	0.604524 (15)	0.57545 (3)	0.527904 (16)	0.03564 (10)
O1	0.47575 (10)	0.5761 (2)	0.56269 (10)	0.0401 (4)
N2	0.68239 (11)	0.9705 (2)	0.53175 (12)	0.0381 (4)
H8	0.6959	1.0948	0.5444	0.046*
N1	0.60914 (11)	0.8734 (2)	0.55588 (11)	0.0344 (4)
O2	0.71192 (10)	0.6870 (2)	0.47370 (10)	0.0436 (4)
C11	0.90778 (14)	1.2366 (3)	0.44114 (14)	0.0418 (5)
H11	0.9247	1.3710	0.4520	0.050*
C9	0.80890 (13)	0.9595 (3)	0.45818 (13)	0.0339 (5)
C12	0.95679 (14)	1.1247 (3)	0.39372 (14)	0.0378 (5)
C13	0.92810 (15)	0.9259 (3)	0.37917 (15)	0.0419 (5)
H13	0.9591	0.8446	0.3472	0.050*
C8	0.73176 (13)	0.8649 (3)	0.48804 (13)	0.0347 (5)
C6	0.48425 (14)	0.8912 (3)	0.62988 (14)	0.0378 (5)
N3	1.02861 (13)	1.2013 (3)	0.36293 (13)	0.0476 (5)
C10	0.83602 (14)	1.1570 (3)	0.47224 (14)	0.0385 (5)
H10	0.8042	1.2374	0.5039	0.046*
C1	0.44444 (13)	0.7007 (3)	0.61235 (13)	0.0355 (5)
C7	0.56179 (15)	0.9695 (3)	0.59851 (15)	0.0414 (5)
H7	0.5789	1.1034	0.6106	0.050*
C14	0.85623 (15)	0.8488 (3)	0.41056 (15)	0.0418 (5)
H14	0.8383	0.7151	0.3993	0.050*
C15	1.08257 (17)	1.0784 (4)	0.31949 (17)	0.0560 (7)
H15A	1.1347	1.1554	0.3068	0.084*
H15B	1.0422	1.0322	0.2699	0.084*
H15C	1.1074	0.9642	0.3524	0.084*
C16	1.06386 (17)	1.3985 (3)	0.38441 (18)	0.0547 (6)
H16A	1.0112	1.4911	0.3788	0.082*
H16B	1.1058	1.4389	0.3490	0.082*
H16C	1.0985	1.3987	0.4399	0.082*
C2	0.37002 (15)	0.6489 (4)	0.64826 (15)	0.0461 (6)
H2	0.3428	0.5212	0.6387	0.055*
C3	0.33486 (16)	0.7778 (4)	0.69733 (16)	0.0540 (6)
H3	0.2835	0.7380	0.7202	0.065*
C5	0.44609 (16)	1.0176 (4)	0.68003 (16)	0.0504 (6)
H5	0.4723	1.1458	0.6909	0.060*
C4	0.37272 (17)	0.9632 (4)	0.71382 (16)	0.0559 (7)
H4	0.3483	1.0512	0.7479	0.067*
O3	0.68177 (10)	0.3641 (2)	0.58935 (10)	0.0429 (4)
O4	0.71583 (15)	0.5810 (3)	0.68721 (13)	0.0722 (6)
C17	0.72061 (16)	0.4179 (3)	0.65971 (16)	0.0455 (6)
H17	0.7563	0.3216	0.6933	0.055*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Zn1	0.03384 (15)	0.02593 (14)	0.04950 (19)	−0.00573 (9)	0.01398 (11)	−0.00385 (10)
O1	0.0353 (7)	0.0404 (8)	0.0478 (10)	−0.0092 (6)	0.0162 (7)	−0.0117 (7)
N2	0.0372 (9)	0.0266 (8)	0.0540 (13)	−0.0070 (7)	0.0180 (9)	−0.0025 (8)
N1	0.0336 (8)	0.0281 (8)	0.0432 (11)	−0.0063 (7)	0.0117 (8)	0.0007 (7)
O2	0.0469 (8)	0.0292 (7)	0.0604 (11)	−0.0115 (6)	0.0246 (8)	−0.0085 (7)
C11	0.0446 (11)	0.0323 (10)	0.0517 (15)	−0.0104 (9)	0.0171 (10)	−0.0037 (10)
C9	0.0335 (10)	0.0320 (10)	0.0368 (13)	−0.0043 (8)	0.0084 (9)	0.0010 (8)
C12	0.0349 (10)	0.0399 (11)	0.0396 (14)	−0.0026 (9)	0.0097 (9)	0.0037 (9)
C13	0.0449 (11)	0.0382 (11)	0.0469 (15)	−0.0002 (9)	0.0194 (11)	−0.0060 (10)
C8	0.0329 (9)	0.0319 (10)	0.0389 (13)	−0.0036 (8)	0.0067 (9)	0.0014 (9)
C6	0.0371 (10)	0.0364 (10)	0.0416 (14)	−0.0006 (9)	0.0124 (9)	−0.0042 (9)
N3	0.0465 (10)	0.0476 (10)	0.0548 (14)	−0.0094 (9)	0.0250 (10)	−0.0018 (9)
C10	0.0410 (11)	0.0333 (10)	0.0443 (14)	−0.0055 (9)	0.0159 (10)	−0.0053 (9)
C1	0.0315 (9)	0.0402 (11)	0.0347 (13)	−0.0008 (9)	0.0065 (9)	−0.0020 (9)
C7	0.0427 (11)	0.0305 (10)	0.0536 (16)	−0.0054 (9)	0.0161 (11)	−0.0061 (10)
C14	0.0459 (11)	0.0307 (10)	0.0511 (15)	−0.0066 (9)	0.0150 (11)	−0.0037 (10)
C15	0.0486 (13)	0.0675 (16)	0.0584 (18)	−0.0044 (12)	0.0259 (13)	−0.0030 (13)
C16	0.0475 (12)	0.0561 (14)	0.0650 (19)	−0.0153 (11)	0.0220 (12)	−0.0036 (13)
C2	0.0411 (11)	0.0556 (13)	0.0436 (15)	−0.0127 (10)	0.0138 (10)	−0.0057 (11)
C3	0.0392 (11)	0.0807 (18)	0.0466 (16)	−0.0074 (12)	0.0191 (11)	−0.0078 (13)
C5	0.0490 (13)	0.0467 (12)	0.0576 (17)	−0.0018 (11)	0.0154 (12)	−0.0139 (12)
C4	0.0472 (13)	0.0709 (17)	0.0537 (17)	0.0033 (12)	0.0196 (12)	−0.0178 (13)
O3	0.0489 (8)	0.0299 (7)	0.0510 (11)	−0.0020 (6)	0.0125 (8)	−0.0009 (7)
O4	0.1017 (16)	0.0525 (11)	0.0617 (14)	−0.0037 (10)	0.0148 (12)	−0.0154 (9)
C17	0.0452 (12)	0.0419 (12)	0.0513 (17)	−0.0026 (10)	0.0144 (11)	0.0063 (11)

Geometric parameters (Å, º) top

Zn1—O3	1.9829 (16)	C6—C7	1.444 (3)
Zn1—O1ⁱ	2.0204 (16)	N3—C15	1.447 (3)
Zn1—N1	2.0681 (17)	N3—C16	1.449 (3)
Zn1—O1	2.0776 (15)	C10—H10	0.9500
Zn1—O2	2.1104 (15)	C1—C2	1.393 (3)
O1—C1	1.339 (2)	C7—H7	0.9500
O1—Zn1ⁱ	2.0204 (16)	C14—H14	0.9500
N2—C8	1.342 (3)	C15—H15A	0.9800
N2—N1	1.384 (2)	C15—H15B	0.9800
N2—H8	0.8800	C15—H15C	0.9800
N1—C7	1.277 (3)	C16—H16A	0.9800
O2—C8	1.250 (2)	C16—H16B	0.9800
C11—C10	1.374 (3)	C16—H16C	0.9800
C11—C12	1.404 (3)	C2—C3	1.378 (3)
C11—H11	0.9500	C2—H2	0.9500
C9—C14	1.387 (3)	C3—C4	1.375 (4)
C9—C10	1.399 (3)	C3—H3	0.9500
C9—C8	1.470 (3)	C5—C4	1.363 (3)
C12—N3	1.364 (3)	C5—H5	0.9500
C12—C13	1.415 (3)	C4—H4	0.9500
C13—C14	1.371 (3)	O3—C17	1.274 (3)
C13—H13	0.9500	O4—C17	1.206 (3)
C6—C5	1.402 (3)	C17—H17	0.9500
C6—C1	1.419 (3)

O3—Zn1—O1ⁱ	102.64 (7)	C11—C10—C9	121.2 (2)
O3—Zn1—N1	126.22 (7)	C11—C10—H10	119.4
O1ⁱ—Zn1—N1	131.13 (7)	C9—C10—H10	119.4
O3—Zn1—O1	107.34 (6)	O1—C1—C2	120.97 (18)
O1ⁱ—Zn1—O1	78.72 (7)	O1—C1—C6	121.88 (18)
N1—Zn1—O1	85.47 (6)	C2—C1—C6	117.1 (2)
O3—Zn1—O2	95.66 (6)	N1—C7—C6	125.24 (19)
O1ⁱ—Zn1—O2	102.13 (6)	N1—C7—H7	117.4
N1—Zn1—O2	76.17 (6)	C6—C7—H7	117.4
O1—Zn1—O2	156.30 (6)	C13—C14—C9	122.20 (19)
C1—O1—Zn1ⁱ	125.90 (12)	C13—C14—H14	118.9
C1—O1—Zn1	128.65 (12)	C9—C14—H14	118.9
Zn1ⁱ—O1—Zn1	101.28 (7)	N3—C15—H15A	109.5
C8—N2—N1	116.42 (16)	N3—C15—H15B	109.5
C8—N2—H8	121.8	H15A—C15—H15B	109.5
N1—N2—H8	121.8	N3—C15—H15C	109.5
C7—N1—N2	117.73 (17)	H15A—C15—H15C	109.5
C7—N1—Zn1	129.16 (14)	H15B—C15—H15C	109.5
N2—N1—Zn1	112.60 (12)	N3—C16—H16A	109.5
C8—O2—Zn1	114.85 (13)	N3—C16—H16B	109.5
C10—C11—C12	121.76 (19)	H16A—C16—H16B	109.5
C10—C11—H11	119.1	N3—C16—H16C	109.5
C12—C11—H11	119.1	H16A—C16—H16C	109.5
C14—C9—C10	117.34 (18)	H16B—C16—H16C	109.5
C14—C9—C8	118.27 (18)	C3—C2—C1	121.7 (2)
C10—C9—C8	124.35 (19)	C3—C2—H2	119.1
N3—C12—C11	122.44 (19)	C1—C2—H2	119.1
N3—C12—C13	121.0 (2)	C4—C3—C2	121.3 (2)
C11—C12—C13	116.57 (18)	C4—C3—H3	119.4
C14—C13—C12	120.9 (2)	C2—C3—H3	119.4
C14—C13—H13	119.5	C4—C5—C6	122.4 (2)
C12—C13—H13	119.5	C4—C5—H5	118.8
O2—C8—N2	119.51 (18)	C6—C5—H5	118.8
O2—C8—C9	120.87 (19)	C5—C4—C3	118.3 (2)
N2—C8—C9	119.62 (17)	C5—C4—H4	120.8
C5—C6—C1	119.1 (2)	C3—C4—H4	120.8
C5—C6—C7	116.03 (19)	C17—O3—Zn1	112.98 (14)
C1—C6—C7	124.82 (19)	O4—C17—O3	125.4 (2)
C12—N3—C15	121.18 (19)	O4—C17—H17	117.3
C12—N3—C16	120.76 (19)	O3—C17—H17	117.3
C15—N3—C16	117.20 (18)

Symmetry code: (i) −x+1, −y+1, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N2—H8···O3ⁱⁱ	0.88	2.00	2.838 (2)	158

Symmetry code: (ii) x, y+1, z.

Experimental details

Crystal data
Chemical formula	[Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)₂]
M_r	785.41
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	173
a, b, c (Å)	14.556 (3), 6.7607 (14), 17.085 (3)
β (°)	101.63 (3)
V (Å³)	1646.8 (6)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	1.52
Crystal size (mm)	0.10 × 0.10 × 0.08

Data collection
Diffractometer	Rigaku R-AXIS RAPID diffractometer
Absorption correction	Multi-scan (ABSCOR; Higashi, 1995)
T_min, T_max	0.863, 0.888
No. of measured, independent and observed [I > 2σ(I)] reflections	13433, 3213, 2679
R_int	0.032
(sin θ/λ)_max (Å⁻¹)	0.617

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.028, 0.077, 1.07
No. of reflections	3213
No. of parameters	228
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.33, −0.30

Computer programs: RAPID-AUTO (Rigaku, 2004), SHELXS97 (Sheldrick,2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N2—H8···O3ⁱ	0.88	2.00	2.838 (2)	158.0

Symmetry code: (i) x, y+1, z.

Acknowledgements

This work was supported financially by the Natural Science Foundation of Fujian Province (grant Nos. 2009S0063 and 2010J01048).

References

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ISSN: 2056-9890

Volume 67| Part 5| May 2011| Pages m624-m625

doi:10.1107/S1600536811014462

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

A dinuclear zinc complex with (E)-4-di­methyl­amino-N′-(2-hy­dr­oxy­benzyl­­idene)benzohydrazide

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Experimental

Crystal data

Data collection

Refinement

Supporting information

Acknowledgements

References

metal-organic compounds

A dinuclear zinc complex with (E)-4-dimethylamino-N′-(2-hydroxybenzylidene)benzohydrazide