Bis[μ-N-(2-oxidobenzyl­idene)pyridine-2-carbohydrazidato]bis­[chlorido(methanol-κO)erbium(III)]

Yang, H.

doi:10.1107/S1600536812013979

metal-organic compounds

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ISSN: 2056-9890

Volume 68| Part 5| May 2012| Pages m580-m581

doi:10.1107/S1600536812013979

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Bis[μ-N-(2-oxidobenzylidene)pyridine-2-carbohydrazidato]bis[chlorido(methanol-κO)erbium(III)]

Hua Yang ^a ^*

^aCollege of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, People's Republic of China
^*Correspondence e-mail: yanghua7687@163.com

(Received 16 March 2012; accepted 31 March 2012; online 13 April 2012)

In the binuclear title complex, [Er₂(C₁₃H₉N₃O₂)₂Cl₂(CH₃OH)₂], the entire molecule is generated by the application of inversion symmetry. Each Er^III ion is seven-coordinated by two O atoms and one N atom from one N-(2-oxidobenzylidene)pyridine-2-carbohydrazidate (L²⁻) ligand, one O atom and one N atom from the symmetry-related L²⁻ ligand, one O atom of a methanol molecule and one chloride anion. The coordination geometry is based on a pseudo-pentagonal bipyramid. Linear supramolecular chains along [010] are formed in the crystal packing through O—H⋯Cl hydrogen bonds.

Related literature

For complexes containing salicylaldehyde-2-pyridinecarboxyl-hydrazone and related ligands, see: Guo et al. (2011a ,b ); Bai et al. (2005 , 2006 ); Wu et al. (2004 ); Milway et al. (2003 ). For the mechanism of the hydrolysis of salicylaldehyde thiosemicarbazone, see: Narang & Aggarwal (1974 ).

Experimental

Crystal data

[Er₂(C₁₃H₉N₃O₂)₂Cl₂(CH₄O)₂]
M_r = 947.97
Monoclinic, P 2₁ /c
a = 9.5810 (4) Å
b = 7.0906 (3) Å
c = 22.3504 (8) Å
β = 96.920 (3)°
V = 1507.31 (10) Å³
Z = 2
Mo Kα radiation
μ = 5.76 mm⁻¹
T = 128 K
0.15 × 0.13 × 0.12 mm

Data collection

Bruker SMART CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker 2000 ) T_min = 0.479, T_max = 0.545
14182 measured reflections
3732 independent reflections
2931 reflections with I > 2σ(I)
R_int = 0.040

Refinement

R[F² > 2σ(F²)] = 0.027
wR(F²) = 0.059
S = 0.99
3732 reflections
200 parameters
H-atom parameters constrained
Δρ_max = 1.25 e Å⁻³
Δρ_min = −0.71 e Å⁻³

Table 1
Selected bond lengths (Å)

Er1—O1	2.157 (3)
Er1—O2ⁱ	2.284 (3)
Er1—O2	2.316 (3)
Er1—O3	2.327 (3)
Er1—N3	2.433 (3)
Er1—N1	2.488 (3)
Er1—Cl1	2.5901 (12)
Symmetry code: (i) -x+1, -y+2, -z+1.

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H7⋯Cl1ⁱⁱ	0.95	2.42	3.128 (4)	131
Symmetry code: (ii) x, y+1, z.

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); 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

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536812013979/tk5069sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536812013979/tk5069Isup2.hkl

checkCIF report

Comment top

The chemistry of coordination complexes supported by salicylaldehyde-2-pyridinecarboxyl-hydrazone (H₂L) and its derivatives has received intensive attention as these form coordination complexes with aesthetically pleasing structures and intriguing magnetic behaviour (Guo et al., 2011a,b). A handful of transition metal complexes based on the H₂L ligand have been prepared (Bai et al., 2005; Wu et al., 2004; Bai et al., 2006; Milway et al., 2003), but no complex containing rare earth elements has been reported to date. Herein, we report the structure of a new dinuclear Er^III complex (Scheme 1). The complex was synthesized by the 2:1:1 reaction of ErCl₃.6H₂O/α-pyridoin/salicylaldehyde thiosemicarbazone under solvothermal conditions. The X-ray analysis reveals that the centrosymmetric complex consists of two Er^III ions, two L^2- ligands, two Cl^- ions and two methanol molecules, Fig. 1 and Table 1. The intermolecular O—H···Cl hydrogen bonds, Table 2, lead to linear supramolecular chains along [010] (Fig. 2).

The remarkable structural feature of the complex is the presence of the in situ formed H₂L ligand, which was proposed to be constructed by the reaction of picolinic acid, hydrazine and salicylaldehyde. The picolinic acid was assumed to be derived from the hydrolysis of α-pyridoin, and hydrazine and salicylaldehyde were believed to be originated from the hydrolysis of salicylaldehyde thiosemicarbazone (Narang & Aggarwal, 1974).

Related literature top

For complexes containing salicylaldehyde-2-pyridinecarboxyl-hydrazone and related ligands, see: Guo et al. (2011a,b); Bai et al. (2005, 2006); Wu et al. (2004); Milway et al. (2003). For the mechanism of the hydrolysis of salicylaldehyde thiosemicarbazone, see: Narang & Aggarwal (1974).

Experimental top

A mixture of ErCl₃.6H₂O (0.0762 g, 0.2 mmol), α-pyridoin (0.0214 g, 0.1 mmol), salicylaldehyde thiosemicarbazone (0.0390 g, 0.2 mmol) and CH₃OH (2 ml) was sealed in a 6 ml Pyrex-tube. The tube was heated at 393 K for 3 days under autogenous pressure. Cooling of the resultant solution to room temperature gave yellow crystals. The crystals were collected by filtration, washed with CH₃OH (2 ml) and dried in air.

Computing details top

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); 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

	Fig. 1. The molecular structure of the title compound, with atom labels and 30% probability displacement ellipsoids. The H atoms have been omitted for clarity.
	Fig. 2. View of the linear supramolecular chain along [010] with the O—H···Cl hydrogen bonds shown as dashed lines.

Bis[µ-N-(2-oxidobenzylidene)pyridine-2- carbohydrazidato]bis[chlorido(methanol-κO)erbium(III)] top

Crystal data top

[Er₂(C₁₃H₉N₃O₂)₂Cl₂(CH₄O)₂]	F(000) = 908
M_r = 947.97	D_x = 2.089 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 4466 reflections
a = 9.5810 (4) Å	θ = 2.7–28.1°
b = 7.0906 (3) Å	µ = 5.76 mm⁻¹
c = 22.3504 (8) Å	T = 128 K
β = 96.920 (3)°	Block, yellow
V = 1507.31 (10) Å³	0.15 × 0.13 × 0.12 mm
Z = 2

Data collection top

Bruker SMART CCD diffractometer	3732 independent reflections
Radiation source: fine-focus sealed tube	2931 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.040
ϕ scans and ω scans	θ_max = 28.3°, θ_min = 2.1°
Absorption correction: multi-scan (SADABS; Bruker 2000)	h = −12→11
T_min = 0.479, T_max = 0.545	k = −9→9
14182 measured reflections	l = −29→29

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)] = 0.027	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.059	H-atom parameters constrained
S = 0.99	w = 1/[σ²(F_o²) + (0.0299P)²] where P = (F_o² + 2F_c²)/3
3732 reflections	(Δ/σ)_max = 0.004
200 parameters	Δρ_max = 1.25 e Å⁻³
0 restraints	Δρ_min = −0.71 e Å⁻³

Crystal data top

[Er₂(C₁₃H₉N₃O₂)₂Cl₂(CH₄O)₂]	V = 1507.31 (10) Å³
M_r = 947.97	Z = 2
Monoclinic, P2₁/c	Mo Kα radiation
a = 9.5810 (4) Å	µ = 5.76 mm⁻¹
b = 7.0906 (3) Å	T = 128 K
c = 22.3504 (8) Å	0.15 × 0.13 × 0.12 mm
β = 96.920 (3)°

Data collection top

Bruker SMART CCD diffractometer	3732 independent reflections
Absorption correction: multi-scan (SADABS; Bruker 2000)	2931 reflections with I > 2σ(I)
T_min = 0.479, T_max = 0.545	R_int = 0.040
14182 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.027	0 restraints
wR(F²) = 0.059	H-atom parameters constrained
S = 0.99	Δρ_max = 1.25 e Å⁻³
3732 reflections	Δρ_min = −0.71 e Å⁻³
200 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

	x	y	z	U_iso*/U_eq
Er1	0.372121 (17)	0.91591 (3)	0.432040 (7)	0.02740 (6)
O2	0.5836 (3)	1.0615 (4)	0.46548 (11)	0.0323 (6)
O3	0.2988 (3)	1.2290 (5)	0.42893 (15)	0.0526 (8)
H7	0.3591	1.3150	0.4521	0.063*
C5	0.6425 (4)	1.0757 (5)	0.36561 (16)	0.0289 (8)
Cl1	0.48595 (13)	0.58790 (16)	0.42195 (5)	0.0476 (3)
N1	0.5108 (3)	1.0104 (5)	0.34970 (14)	0.0282 (7)
O1	0.1993 (3)	0.8698 (4)	0.36235 (12)	0.0386 (7)
C14	0.0511 (4)	0.7742 (6)	0.46482 (18)	0.0366 (9)
H14	−0.0122	0.7498	0.4935	0.044*
C8	0.0727 (4)	0.7952 (5)	0.35398 (17)	0.0306 (9)
C6	0.6814 (4)	1.1036 (5)	0.43082 (17)	0.0287 (8)
N3	0.1753 (3)	0.8294 (5)	0.48577 (14)	0.0308 (7)
N4	0.8066 (3)	1.1581 (5)	0.45048 (14)	0.0344 (8)
C1	0.4695 (4)	0.9753 (6)	0.29156 (18)	0.0343 (9)
H1	0.3765	0.9309	0.2802	0.041*
C4	0.7340 (4)	1.1077 (6)	0.32293 (18)	0.0373 (10)
H4	0.8257	1.1559	0.3347	0.045*
C10	−0.1348 (5)	0.6619 (7)	0.3905 (2)	0.0435 (11)
H10	−0.1858	0.6313	0.4230	0.052*
C12	−0.1223 (5)	0.6715 (7)	0.2860 (2)	0.0440 (11)
H12	−0.1625	0.6447	0.2459	0.053*
C9	−0.0018 (4)	0.7457 (6)	0.40305 (17)	0.0332 (8)
C3	0.6899 (5)	1.0688 (6)	0.26356 (19)	0.0413 (10)
H3	0.7513	1.0886	0.2338	0.050*
C13	0.0074 (4)	0.7590 (6)	0.29574 (18)	0.0366 (9)
H13	0.0532	0.7954	0.2621	0.044*
C2	0.5561 (5)	1.0008 (7)	0.24736 (18)	0.0393 (10)
H2	0.5241	0.9721	0.2065	0.047*
C11	−0.1934 (5)	0.6230 (7)	0.3332 (2)	0.0499 (12)
H11	−0.2825	0.5629	0.3262	0.060*
C7	0.1756 (6)	1.3080 (8)	0.3970 (3)	0.0722 (17)
H7A	0.1078	1.2075	0.3850	0.108*
H7B	0.2000	1.3728	0.3609	0.108*
H7C	0.1341	1.3985	0.4229	0.108*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Er1	0.02276 (9)	0.03156 (11)	0.02796 (10)	−0.00645 (8)	0.00334 (6)	−0.00213 (8)
O2	0.0269 (13)	0.0435 (18)	0.0273 (14)	−0.0087 (12)	0.0062 (10)	−0.0013 (12)
O3	0.0461 (19)	0.0366 (19)	0.073 (2)	0.0010 (15)	−0.0021 (15)	−0.0050 (17)
C5	0.0294 (18)	0.027 (2)	0.0304 (19)	−0.0045 (16)	0.0041 (15)	0.0008 (17)
Cl1	0.0544 (7)	0.0371 (6)	0.0535 (7)	0.0029 (5)	0.0145 (5)	0.0048 (5)
N1	0.0286 (16)	0.0276 (17)	0.0285 (17)	−0.0043 (13)	0.0038 (13)	−0.0008 (14)
O1	0.0266 (14)	0.054 (2)	0.0347 (16)	−0.0102 (13)	0.0012 (11)	−0.0015 (13)
C14	0.0283 (19)	0.042 (3)	0.040 (2)	−0.0070 (18)	0.0065 (16)	−0.003 (2)
C8	0.0251 (18)	0.032 (2)	0.034 (2)	0.0003 (15)	−0.0017 (15)	−0.0056 (17)
C6	0.0285 (19)	0.031 (2)	0.0273 (19)	−0.0042 (16)	0.0040 (14)	−0.0006 (16)
N3	0.0264 (16)	0.0361 (19)	0.0299 (17)	−0.0075 (14)	0.0033 (13)	−0.0026 (14)
N4	0.0288 (17)	0.046 (2)	0.0289 (18)	−0.0093 (15)	0.0066 (14)	−0.0029 (15)
C1	0.035 (2)	0.038 (3)	0.029 (2)	−0.0038 (17)	0.0004 (16)	0.0010 (18)
C4	0.032 (2)	0.045 (3)	0.035 (2)	−0.0083 (19)	0.0059 (16)	0.003 (2)
C10	0.035 (2)	0.048 (3)	0.046 (3)	−0.012 (2)	0.0013 (19)	−0.002 (2)
C12	0.036 (2)	0.047 (3)	0.046 (3)	−0.003 (2)	−0.0083 (19)	−0.011 (2)
C9	0.0263 (18)	0.036 (2)	0.036 (2)	−0.0036 (18)	0.0003 (15)	−0.0054 (19)
C3	0.041 (2)	0.049 (3)	0.036 (2)	0.002 (2)	0.0135 (18)	0.005 (2)
C13	0.033 (2)	0.040 (2)	0.036 (2)	0.0003 (19)	0.0012 (16)	−0.006 (2)
C2	0.044 (2)	0.047 (3)	0.026 (2)	0.000 (2)	−0.0002 (18)	0.0001 (19)
C11	0.037 (2)	0.050 (3)	0.060 (3)	−0.018 (2)	−0.007 (2)	−0.005 (2)
C7	0.069 (4)	0.058 (4)	0.088 (4)	0.019 (3)	0.003 (3)	0.013 (3)

Geometric parameters (Å, º) top

Er1—O1	2.157 (3)	C6—N4	1.286 (5)
Er1—O2ⁱ	2.284 (3)	N3—N4ⁱ	1.417 (4)
Er1—O2	2.316 (3)	N4—N3ⁱ	1.417 (4)
Er1—O3	2.327 (3)	C1—C2	1.376 (6)
Er1—N3	2.433 (3)	C1—H1	0.9500
Er1—N1	2.488 (3)	C4—C3	1.371 (6)
Er1—Cl1	2.5901 (12)	C4—H4	0.9500
O2—C6	1.320 (4)	C10—C11	1.362 (6)
O2—Er1ⁱ	2.284 (3)	C10—C9	1.403 (5)
O3—C7	1.419 (6)	C10—H10	0.9500
O3—H7	0.9500	C12—C11	1.369 (7)
C5—N1	1.351 (5)	C12—C13	1.382 (6)
C5—C4	1.390 (5)	C12—H12	0.9500
C5—C6	1.474 (5)	C3—C2	1.377 (6)
N1—C1	1.335 (5)	C3—H3	0.9500
O1—C8	1.316 (4)	C13—H13	0.9500
C14—N3	1.286 (5)	C2—H2	0.9500
C14—C9	1.427 (5)	C11—H11	0.9500
C14—H14	0.9500	C7—H7A	0.9800
C8—C13	1.398 (5)	C7—H7B	0.9800
C8—C9	1.423 (5)	C7—H7C	0.9800

O1—Er1—O2ⁱ	140.21 (10)	O1—C8—C13	120.5 (4)
O1—Er1—O2	149.99 (10)	O1—C8—C9	122.0 (3)
O2ⁱ—Er1—O2	66.16 (10)	C13—C8—C9	117.5 (3)
O1—Er1—O3	85.42 (12)	N4—C6—O2	124.5 (3)
O2ⁱ—Er1—O3	88.97 (11)	N4—C6—C5	119.5 (3)
O2—Er1—O3	80.42 (11)	O2—C6—C5	115.9 (3)
O1—Er1—N3	75.24 (10)	C14—N3—N4ⁱ	112.4 (3)
O2ⁱ—Er1—N3	65.42 (10)	C14—N3—Er1	129.4 (3)
O2—Er1—N3	130.77 (10)	N4ⁱ—N3—Er1	118.2 (2)
O3—Er1—N3	90.34 (11)	C6—N4—N3ⁱ	111.0 (3)
O1—Er1—N1	86.47 (10)	N1—C1—C2	122.7 (4)
O2ⁱ—Er1—N1	132.20 (10)	N1—C1—H1	118.6
O2—Er1—N1	66.06 (9)	C2—C1—H1	118.6
O3—Er1—N1	84.69 (11)	C3—C4—C5	119.0 (4)
N3—Er1—N1	161.38 (11)	C3—C4—H4	120.5
O1—Er1—Cl1	95.50 (9)	C5—C4—H4	120.5
O2ⁱ—Er1—Cl1	96.94 (7)	C11—C10—C9	122.4 (4)
O2—Er1—Cl1	93.86 (7)	C11—C10—H10	118.8
O3—Er1—Cl1	169.37 (9)	C9—C10—H10	118.8
N3—Er1—Cl1	100.15 (8)	C11—C12—C13	120.8 (4)
N1—Er1—Cl1	84.80 (8)	C11—C12—H12	119.6
O1—Er1—Er1ⁱ	167.32 (8)	C13—C12—H12	119.6
O2ⁱ—Er1—Er1ⁱ	33.34 (6)	C10—C9—C8	118.5 (4)
O2—Er1—Er1ⁱ	32.82 (6)	C10—C9—C14	117.5 (4)
O3—Er1—Er1ⁱ	83.65 (8)	C8—C9—C14	123.9 (3)
N3—Er1—Er1ⁱ	98.39 (7)	C4—C3—C2	119.6 (4)
N1—Er1—Er1ⁱ	98.87 (7)	C4—C3—H3	120.2
Cl1—Er1—Er1ⁱ	96.43 (3)	C2—C3—H3	120.2
C6—O2—Er1ⁱ	120.9 (2)	C12—C13—C8	121.5 (4)
C6—O2—Er1	124.5 (2)	C12—C13—H13	119.3
Er1ⁱ—O2—Er1	113.84 (10)	C8—C13—H13	119.3
C7—O3—Er1	128.4 (3)	C1—C2—C3	118.7 (4)
C7—O3—H7	115.8	C1—C2—H2	120.7
Er1—O3—H7	115.8	C3—C2—H2	120.7
N1—C5—C4	121.5 (4)	C10—C11—C12	119.2 (4)
N1—C5—C6	115.0 (3)	C10—C11—H11	120.4
C4—C5—C6	123.5 (3)	C12—C11—H11	120.4
C1—N1—C5	118.5 (3)	O3—C7—H7A	109.5
C1—N1—Er1	123.2 (3)	O3—C7—H7B	109.5
C5—N1—Er1	117.6 (2)	H7A—C7—H7B	109.5
C8—O1—Er1	141.0 (2)	O3—C7—H7C	109.5
N3—C14—C9	126.9 (4)	H7A—C7—H7C	109.5
N3—C14—H14	116.5	H7B—C7—H7C	109.5
C9—C14—H14	116.5

Symmetry code: (i) −x+1, −y+2, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O3—H7···Cl1ⁱⁱ	0.95	2.42	3.128 (4)	131

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

Experimental details

Crystal data
Chemical formula	[Er₂(C₁₃H₉N₃O₂)₂Cl₂(CH₄O)₂]
M_r	947.97
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	128
a, b, c (Å)	9.5810 (4), 7.0906 (3), 22.3504 (8)
β (°)	96.920 (3)
V (Å³)	1507.31 (10)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	5.76
Crystal size (mm)	0.15 × 0.13 × 0.12

Data collection
Diffractometer	Bruker SMART CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker 2000)
T_min, T_max	0.479, 0.545
No. of measured, independent and observed [I > 2σ(I)] reflections	14182, 3732, 2931
R_int	0.040
(sin θ/λ)_max (Å⁻¹)	0.667

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.027, 0.059, 0.99
No. of reflections	3732
No. of parameters	200
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.25, −0.71

Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Selected bond lengths (Å) top

Er1—O1	2.157 (3)	Er1—N3	2.433 (3)
Er1—O2ⁱ	2.284 (3)	Er1—N1	2.488 (3)
Er1—O2	2.316 (3)	Er1—Cl1	2.5901 (12)
Er1—O3	2.327 (3)

Symmetry code: (i) −x+1, −y+2, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O3—H7···Cl1ⁱⁱ	0.95	2.42	3.128 (4)	131

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

Acknowledgements

The author appreciates financial support from Yanan University (grant No. YD2011–20) and the Science and Technology Bureau of Yanan City (grant No. kn2009–16).

References

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Volume 68| Part 5| May 2012| Pages m580-m581

doi:10.1107/S1600536812013979

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

Bis[μ-N-(2-oxido­benzyl­­idene)pyridine-2-carbohydrazidato]bis­­[chlorido(methanol-κO)erbium(III)]

Related literature

Experimental

Crystal data

Data collection

Refinement

Supporting information

Acknowledgements

References

metal-organic compounds

Bis[μ-N-(2-oxidobenzylidene)pyridine-2-carbohydrazidato]bis[chlorido(methanol-κO)erbium(III)]