{μ-6,6'-Dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}-μ-nitrato-dinitratoeuropium(III)zinc(II).

In the title heteronuclear Zn(II)-Eu(III) complex [systematic name: {6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato-κ(4)O(1),O(1'),O(6),O(6'):2κ(4)O(1),N,N',O(1')}-μ-nitrato-1:2κ(2)O:O'-dini-trato-1κ(4)O,O'-europium(III)zinc(II)], [EuZn(C(18)H(18)N(2)O(4))(NO(3))(3)], with the hexa-dentate Schiff base compartmental ligand N,N'-bis-(3-methoxy-salicyl-idene)ethyl-enediamine (H(2)L), the Eu and Zn atoms are triply bridged by two phenolate O atoms of the Schiff base ligand and one nitrate ion. The five-coordinate Zn atom is in a square-pyramidal geometry with the donor centers of two imine N atoms, two phenolate O atoms and one of the bridging nitrate O atoms. The Eu(III) center has a ninefold coordination environment of O atoms, involving the phenol-ate O atoms, two meth-oxy O atoms, two O atoms from two nitrate ions and one from the bridging nitrate ion. Weak inter-molecular C-H⋯O inter-actions generate a two-dimensional double-layer structure.

Related literature

For related literature, see: Baggio et al. (2000 ▶); Caravan et al. (1999 ▶); Edder et al. (2000 ▶); Knoer et al. (2005 ▶); Sui et al. (2006 ▶, 2007 ▶).

Experimental

Crystal data

[EuZn(C18H18N2O4)(NO3)3]

M = 729.70

Monoclinic,

a = 10.6576 (13) Å

b = 16.460 (2) Å

c = 14.8760 (18) Å

β = 99.253 (2)°

V = 2575.7 (5) Å3

Z = 4

Mo Kα radiation

μ = 3.42 mm−1

T = 293 (2) K

0.22 × 0.21 × 0.13 mm

Data collection

Bruker APEXII area-detector diffractometer

Absorption correction: multi-scan (SADABS; Bruker, 2004 ▶) T min = 0.520, T max = 0.665

19080 measured reflections

6166 independent reflections

4469 reflections with I > 2σ(I)

R int = 0.029

Refinement

R[F 2 > 2σ(F 2)] = 0.041

wR(F 2) = 0.137

S = 1.00

6166 reflections

346 parameters

1 restraint

H-atom parameters constrained

Δρmax = 1.01 e Å−3

Δρmin = −1.34 e Å−3

Data collection: APEX2 (Bruker, 2004 ▶); cell refinement: APEX2; data reduction: APEX2; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997 ▶); molecular graphics: APEX2; software used to prepare material for publication: APEX2 and publCIF (Westrip, 2007 ▶).

Crystal structure: contains datablocks I, global. DOI: 10.1107/S160053680706151X/at2500sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S160053680706151X/at2500Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

[EuZn(C18H18N2O4)(NO3)3]	F000 = 1432
Mr = 729.70	Dx = 1.882 Mg m−3
Monoclinic, P21/n	Mo Kα radiation λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 7701 reflections
a = 10.6576 (13) Å	θ = 1.9–28.2º
b = 16.460 (2) Å	µ = 3.42 mm−1
c = 14.8760 (18) Å	T = 293 (2) K
β = 99.253 (2)º	Block, yellow
V = 2575.7 (5) Å3	0.22 × 0.21 × 0.13 mm
Z = 4

Bruker APEXII area-detector diffractometer	6166 independent reflections
Radiation source: fine-focus sealed tube	4469 reflections with I > 2σ(I)
Monochromator: graphite	Rint = 0.029
T = 293(2) K	θmax = 28.2º
φ and ω scan	θmin = 1.9º
Absorption correction: multi-scan(SADABS; Bruker, 2004)	h = −14→13
Tmin = 0.520, Tmax = 0.665	k = −21→21
19080 measured reflections	l = −19→19

Refinement on F2	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.041	H-atom parameters constrained
wR(F2) = 0.137	w = 1/[σ2(Fo2) + (0.095P)2] where P = (Fo2 + 2Fc2)/3
S = 1.00	(Δ/σ)max = 0.001
6166 reflections	Δρmax = 1.01 e Å−3
346 parameters	Δρmin = −1.34 e Å−3
1 restraint	Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methods	Extinction coefficient: 0.0023 (3)

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
Eu1	0.63900 (2)	0.108878 (15)	0.274156 (15)	0.04120 (12)
Zn1	0.78031 (6)	0.03491 (4)	0.11111 (4)	0.05380 (19)
N1	0.7500 (5)	−0.0694 (3)	0.0378 (3)	0.0606 (12)
O12	0.4368 (5)	0.1271 (3)	0.1789 (3)	0.0741 (13)
O1	0.6479 (4)	−0.0006 (2)	0.1867 (3)	0.0622 (10)
O3	0.5081 (4)	−0.0172 (3)	0.3054 (3)	0.0632 (11)
O9	0.7155 (4)	0.1980 (3)	0.3991 (3)	0.0705 (12)
O8	0.6712 (5)	0.0748 (3)	0.4353 (3)	0.0741 (13)
N4	0.7205 (6)	0.1408 (4)	0.4622 (4)	0.0751 (16)
C1	0.5860 (5)	−0.0710 (3)	0.1821 (4)	0.0532 (13)
C4	0.4554 (7)	−0.2156 (5)	0.1893 (6)	0.088 (2)
H4	0.4132	−0.2647	0.1927	0.105*
C2	0.5091 (6)	−0.0829 (4)	0.2476 (4)	0.0569 (13)
N3	0.3827 (5)	0.1566 (4)	0.2423 (4)	0.0778 (17)
C6	0.5955 (6)	−0.1324 (4)	0.1176 (5)	0.0616 (15)
C18	0.4310 (7)	−0.0261 (5)	0.3785 (4)	0.079 (2)
H18A	0.3462	−0.0420	0.3527	0.118*
H18B	0.4284	0.0248	0.4097	0.118*
H18C	0.4681	−0.0668	0.4208	0.118*
O10	0.7682 (7)	0.1548 (4)	0.5388 (3)	0.128 (3)
C3	0.4432 (6)	−0.1548 (4)	0.2542 (5)	0.0734 (18)
H3	0.3932	−0.1626	0.2993	0.088*
C7	0.6722 (6)	−0.1262 (4)	0.0438 (4)	0.0611 (15)
H7	0.6627	−0.1663	−0.0008	0.073*
O11	0.4523 (4)	0.1616 (3)	0.3198 (3)	0.0737 (13)
C5	0.5259 (7)	−0.2051 (4)	0.1224 (5)	0.0748 (18)
H5	0.5289	−0.2459	0.0795	0.090*
O6	0.9413 (4)	0.0296 (3)	0.1972 (3)	0.0668 (11)
O4	0.6363 (4)	0.2606 (3)	0.2286 (3)	0.0646 (11)
O2	0.7090 (4)	0.1414 (2)	0.1447 (3)	0.0608 (10)
O5	0.8463 (4)	0.0763 (4)	0.3096 (3)	0.0778 (13)
N2	0.8025 (5)	0.0827 (4)	−0.0125 (3)	0.0618 (12)
N5	0.9391 (6)	0.0506 (4)	0.2778 (4)	0.0844 (17)
C8	0.8228 (6)	−0.0642 (5)	−0.0385 (4)	0.0700 (17)
H8A	0.7942	−0.1060	−0.0831	0.084*
H8B	0.9124	−0.0728	−0.0163	0.084*
C15	0.6903 (6)	0.2813 (4)	0.1541 (4)	0.0577 (14)
C16	0.7293 (5)	0.2124 (4)	0.1086 (4)	0.0535 (13)
C10	0.8045 (6)	0.1575 (4)	−0.0319 (4)	0.0660 (16)
H10	0.8243	0.1710	−0.0887	0.079*
O13	0.2748 (6)	0.1790 (6)	0.2304 (5)	0.141 (3)
C11	0.7783 (6)	0.2248 (4)	0.0271 (4)	0.0625 (15)
C9	0.8027 (7)	0.0198 (5)	−0.0826 (4)	0.0754 (19)
H9A	0.8700	0.0308	−0.1177	0.090*
H9B	0.7223	0.0208	−0.1239	0.090*
C17	0.5747 (8)	0.3264 (4)	0.2710 (5)	0.083 (2)
H17A	0.6329	0.3710	0.2841	0.125*
H17B	0.5499	0.3073	0.3265	0.125*
H17C	0.5007	0.3443	0.2301	0.125*
C14	0.7069 (7)	0.3593 (4)	0.1239 (4)	0.0667 (16)
H14	0.6840	0.4043	0.1555	0.080*
C12	0.7926 (7)	0.3043 (4)	−0.0030 (4)	0.0739 (19)
H12	0.8254	0.3128	−0.0565	0.089*
C13	0.7599 (8)	0.3683 (5)	0.0435 (5)	0.079 (2)
H13	0.7724	0.4203	0.0221	0.095*
O7	1.0692 (8)	0.0412 (5)	0.3486 (5)	0.156 (3)

	U11	U22	U33	U12	U13	U23
Eu1	0.04652 (18)	0.04350 (18)	0.03697 (16)	−0.00126 (10)	0.01698 (11)	−0.00322 (9)
Zn1	0.0580 (4)	0.0561 (4)	0.0510 (4)	0.0004 (3)	0.0200 (3)	−0.0042 (3)
N1	0.061 (3)	0.067 (3)	0.057 (3)	−0.003 (3)	0.018 (2)	−0.017 (2)
O12	0.065 (3)	0.099 (4)	0.061 (3)	0.004 (2)	0.017 (2)	−0.013 (2)
O1	0.073 (3)	0.055 (2)	0.066 (2)	−0.014 (2)	0.033 (2)	−0.0140 (19)
O3	0.071 (3)	0.066 (3)	0.059 (2)	−0.010 (2)	0.029 (2)	−0.001 (2)
O9	0.088 (3)	0.063 (3)	0.062 (3)	−0.012 (2)	0.018 (2)	−0.002 (2)
O8	0.100 (4)	0.070 (3)	0.055 (2)	−0.023 (3)	0.021 (2)	−0.002 (2)
N4	0.098 (4)	0.083 (4)	0.048 (3)	−0.029 (4)	0.026 (3)	−0.009 (3)
C1	0.052 (3)	0.046 (3)	0.063 (3)	0.000 (2)	0.013 (3)	0.000 (3)
C4	0.076 (5)	0.068 (5)	0.125 (7)	−0.027 (4)	0.034 (5)	−0.017 (4)
C2	0.055 (3)	0.055 (3)	0.061 (3)	−0.001 (3)	0.009 (3)	−0.001 (3)
N3	0.058 (3)	0.104 (5)	0.075 (4)	0.007 (3)	0.022 (3)	−0.022 (3)
C6	0.061 (4)	0.053 (3)	0.072 (4)	0.005 (3)	0.013 (3)	−0.005 (3)
C18	0.088 (5)	0.092 (5)	0.067 (4)	−0.013 (4)	0.043 (4)	0.004 (3)
O10	0.178 (7)	0.145 (6)	0.054 (3)	−0.071 (5)	−0.007 (4)	0.002 (3)
C3	0.062 (4)	0.072 (5)	0.090 (5)	−0.010 (3)	0.024 (4)	0.008 (4)
C7	0.061 (4)	0.062 (4)	0.060 (4)	0.004 (3)	0.010 (3)	−0.015 (3)
O11	0.073 (3)	0.097 (4)	0.055 (2)	0.000 (2)	0.022 (2)	−0.020 (2)
C5	0.075 (4)	0.054 (4)	0.098 (5)	−0.009 (3)	0.019 (4)	−0.018 (3)
O6	0.060 (2)	0.074 (3)	0.067 (2)	0.002 (2)	0.010 (2)	−0.005 (2)
O4	0.088 (3)	0.054 (2)	0.058 (2)	0.008 (2)	0.029 (2)	0.0014 (18)
O2	0.079 (3)	0.050 (2)	0.060 (2)	0.008 (2)	0.034 (2)	0.0059 (18)
O5	0.058 (3)	0.116 (4)	0.061 (3)	0.007 (3)	0.012 (2)	−0.015 (3)
N2	0.061 (3)	0.076 (4)	0.053 (3)	0.002 (3)	0.019 (2)	0.003 (2)
N5	0.082 (4)	0.091 (5)	0.081 (3)	−0.001 (3)	0.014 (3)	−0.018 (3)
C8	0.065 (4)	0.087 (5)	0.064 (4)	0.002 (3)	0.028 (3)	−0.017 (3)
C15	0.064 (3)	0.050 (3)	0.060 (3)	−0.003 (3)	0.012 (3)	0.003 (3)
C16	0.057 (3)	0.053 (3)	0.053 (3)	−0.003 (3)	0.013 (2)	0.006 (2)
C10	0.067 (4)	0.077 (5)	0.059 (3)	−0.002 (3)	0.027 (3)	0.011 (3)
O13	0.070 (4)	0.221 (9)	0.131 (5)	0.045 (4)	0.010 (4)	−0.060 (5)
C11	0.062 (4)	0.064 (4)	0.065 (4)	−0.007 (3)	0.019 (3)	0.001 (3)
C9	0.076 (4)	0.100 (5)	0.053 (3)	0.013 (4)	0.018 (3)	−0.009 (3)
C17	0.108 (6)	0.059 (4)	0.088 (5)	0.013 (4)	0.030 (4)	−0.009 (3)
C14	0.080 (4)	0.047 (3)	0.072 (4)	−0.001 (3)	0.008 (3)	0.008 (3)
C12	0.089 (5)	0.075 (5)	0.061 (4)	−0.012 (4)	0.022 (3)	0.019 (3)
C13	0.102 (6)	0.067 (4)	0.065 (4)	−0.007 (4)	0.006 (4)	0.019 (3)
O7	0.124 (6)	0.179 (9)	0.149 (6)	0.008 (5)	−0.029 (5)	−0.024 (5)

Eu1—O1	2.234 (4)	C18—H18A	0.9600
Eu1—O2	2.239 (4)	C18—H18B	0.9600
Eu1—O3	2.584 (4)	C18—H18C	0.9600
Eu1—O4	2.587 (4)	C3—H3	0.9300
Eu1—O5	2.252 (5)	C7—H7	0.9300
Eu1—O8	2.432 (4)	C5—H5	0.9300
Eu1—O9	2.405 (4)	O6—N5	1.251 (7)
Eu1—O11	2.368 (4)	O4—C15	1.371 (7)
Eu1—O12	2.400 (5)	O4—C17	1.462 (7)
Zn1—O1	2.027 (4)	O2—C16	1.319 (7)
Zn1—O2	2.005 (4)	O5—N5	1.238 (7)
Zn1—O6	1.971 (4)	N2—C10	1.265 (9)
Zn1—N1	2.032 (5)	N2—C9	1.471 (8)
Zn1—N2	2.048 (5)	N5—O7	1.607 (9)
N1—C7	1.262 (8)	C8—C9	1.531 (10)
N1—C8	1.477 (7)	C8—H8A	0.9700
O12—N3	1.278 (6)	C8—H8B	0.9700
O1—C1	1.329 (7)	C15—C14	1.381 (8)
O3—C2	1.383 (7)	C15—C16	1.417 (8)
O3—C18	1.472 (6)	C16—C11	1.409 (8)
O9—N4	1.324 (7)	C10—C11	1.468 (9)
O8—N4	1.245 (7)	C10—H10	0.9300
N4—O10	1.194 (7)	C11—C12	1.399 (9)
C1—C2	1.385 (8)	C9—H9A	0.9700
C1—C6	1.408 (8)	C9—H9B	0.9700
C4—C5	1.351 (10)	C17—H17A	0.9600
C4—C3	1.410 (10)	C17—H17B	0.9600
C4—H4	0.9300	C17—H17C	0.9600
C2—C3	1.388 (9)	C14—C13	1.411 (10)
N3—O13	1.194 (7)	C14—H14	0.9300
N3—O11	1.269 (7)	C12—C13	1.336 (10)
C6—C5	1.416 (9)	C12—H12	0.9300
C6—C7	1.475 (9)	C13—H13	0.9300
O1—Eu1—O2	68.93 (14)	C1—C6—C5	118.5 (6)
O1—Eu1—O5	79.18 (17)	C1—C6—C7	124.5 (6)
O2—Eu1—O5	78.96 (16)	C5—C6—C7	117.0 (6)
O1—Eu1—O11	125.39 (15)	O3—C18—H18A	109.5
O2—Eu1—O11	124.77 (16)	O3—C18—H18B	109.5
O5—Eu1—O11	149.10 (15)	H18A—C18—H18B	109.5
O1—Eu1—O12	82.82 (16)	O3—C18—H18C	109.5
O2—Eu1—O12	81.57 (16)	H18A—C18—H18C	109.5
O5—Eu1—O12	157.19 (16)	H18B—C18—H18C	109.5
O11—Eu1—O12	53.67 (15)	C2—C3—C4	117.0 (6)
O1—Eu1—O9	154.35 (16)	C2—C3—H3	121.5
O2—Eu1—O9	113.64 (16)	C4—C3—H3	121.5
O5—Eu1—O9	76.50 (17)	N1—C7—C6	123.6 (5)
O11—Eu1—O9	75.57 (15)	N1—C7—H7	118.2
O12—Eu1—O9	122.73 (16)	C6—C7—H7	118.2
O1—Eu1—O8	112.04 (16)	N3—O11—Eu1	96.3 (3)
O2—Eu1—O8	152.78 (17)	C4—C5—C6	120.2 (6)
O5—Eu1—O8	74.72 (17)	C4—C5—H5	119.9
O11—Eu1—O8	78.12 (17)	C6—C5—H5	119.9
O12—Eu1—O8	125.60 (17)	N5—O6—Zn1	117.6 (4)
O9—Eu1—O8	53.30 (15)	C15—O4—C17	116.1 (5)
O1—Eu1—O3	62.07 (13)	C15—O4—Eu1	117.6 (3)
O2—Eu1—O3	127.64 (14)	C17—O4—Eu1	126.1 (4)
O5—Eu1—O3	107.70 (18)	C16—O2—Zn1	125.4 (3)
O11—Eu1—O3	74.94 (15)	C16—O2—Eu1	131.4 (4)
O12—Eu1—O3	75.38 (16)	Zn1—O2—Eu1	101.39 (17)
O9—Eu1—O3	118.44 (13)	N5—O5—Eu1	143.8 (4)
O8—Eu1—O3	68.39 (14)	C10—N2—C9	121.4 (5)
O1—Eu1—O4	128.75 (13)	C10—N2—Zn1	126.0 (4)
O2—Eu1—O4	62.29 (14)	C9—N2—Zn1	112.3 (4)
O5—Eu1—O4	105.10 (18)	O5—N5—O6	126.8 (6)
O11—Eu1—O4	75.33 (16)	O5—N5—O7	116.2 (6)
O12—Eu1—O4	75.71 (16)	O6—N5—O7	117.0 (6)
O9—Eu1—O4	66.55 (14)	N1—C8—C9	109.1 (5)
O8—Eu1—O4	118.38 (15)	N1—C8—H8A	109.9
O3—Eu1—O4	147.03 (14)	C9—C8—H8A	109.9
O6—Zn1—O2	101.66 (18)	N1—C8—H8B	109.9
O6—Zn1—O1	103.73 (18)	C9—C8—H8B	109.9
O2—Zn1—O1	77.77 (16)	H8A—C8—H8B	108.3
O6—Zn1—N1	111.0 (2)	O4—C15—C14	125.9 (6)
O2—Zn1—N1	147.0 (2)	O4—C15—C16	112.4 (5)
O1—Zn1—N1	89.38 (18)	C14—C15—C16	121.7 (6)
O6—Zn1—N2	112.73 (19)	O2—C16—C11	125.9 (5)
O2—Zn1—N2	89.48 (19)	O2—C16—C15	115.8 (5)
O1—Zn1—N2	143.1 (2)	C11—C16—C15	118.2 (5)
N1—Zn1—N2	82.8 (2)	N2—C10—C11	125.9 (5)
C7—N1—C8	121.9 (5)	N2—C10—H10	117.1
C7—N1—Zn1	129.6 (4)	C11—C10—H10	117.1
C8—N1—Zn1	107.8 (4)	C12—C11—C16	119.1 (6)
N3—O12—Eu1	94.6 (4)	C12—C11—C10	118.2 (6)
C1—O1—Zn1	127.4 (3)	C16—C11—C10	122.5 (6)
C1—O1—Eu1	131.8 (3)	N2—C9—C8	110.4 (5)
Zn1—O1—Eu1	100.89 (16)	N2—C9—H9A	109.6
C2—O3—C18	116.3 (5)	C8—C9—H9A	109.6
C2—O3—Eu1	117.2 (3)	N2—C9—H9B	109.6
C18—O3—Eu1	126.5 (4)	C8—C9—H9B	109.6
N4—O9—Eu1	94.8 (3)	H9A—C9—H9B	108.1
N4—O8—Eu1	95.7 (4)	O4—C17—H17A	109.5
O10—N4—O8	124.6 (6)	O4—C17—H17B	109.5
O10—N4—O9	120.1 (6)	H17A—C17—H17B	109.5
O8—N4—O9	115.3 (5)	O4—C17—H17C	109.5
O1—C1—C2	115.6 (5)	H17A—C17—H17C	109.5
O1—C1—C6	124.8 (5)	H17B—C17—H17C	109.5
C2—C1—C6	119.5 (6)	C15—C14—C13	117.6 (6)
C5—C4—C3	122.5 (7)	C15—C14—H14	121.2
C5—C4—H4	118.8	C13—C14—H14	121.2
C3—C4—H4	118.8	C13—C12—C11	121.3 (6)
O3—C2—C1	113.1 (5)	C13—C12—H12	119.3
O3—C2—C3	124.6 (6)	C11—C12—H12	119.3
C1—C2—C3	122.3 (6)	C12—C13—C14	122.0 (7)
O13—N3—O11	121.4 (6)	C12—C13—H13	119.0
O13—N3—O12	123.2 (7)	C14—C13—H13	119.0
O11—N3—O12	115.4 (5)

D—H···A	D—H	H···A	D···A	D—H···A
C12—H12···O11i	0.93	2.49	3.406 (8)	169
C8—H8A···O13ii	0.97	2.50	3.442 (9)	163

Table 1

Selected bond lengths (Å)

Eu1—O1	2.234 (4)
Eu1—O2	2.239 (4)
Eu1—O3	2.584 (4)
Eu1—O4	2.587 (4)
Eu1—O5	2.252 (5)
Eu1—O8	2.432 (4)
Eu1—O9	2.405 (4)
Eu1—O11	2.368 (4)
Eu1—O12	2.400 (5)
Zn1—O1	2.027 (4)
Zn1—O2	2.005 (4)
Zn1—O6	1.971 (4)
Zn1—N1	2.032 (5)
Zn1—N2	2.048 (5)

Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C12—H12⋯O11i	0.93	2.49	3.406 (8)	169
C8—H8A⋯O13ii	0.97	2.50	3.442 (9)	163

Symmetry codes: (i) ; (ii) .