Yttrium ethyl-enediammonium squarate tetra-hydrate.

The title compound, {(C(2)H(10)N(2))(1.5)[Y(C(4)O(4))(3)(H(2)O)(4)]}(n) {system-atic name: catena-poly[sesqui(ethyl-enediammonium) [[tetra-aquabis-(squarato-κO)yttrium(III)]-μ-squarato-κ(2)O:O']]}, was synthesized by slow evaporation of an acid solution. The asymetric unit contains one yttrium cation in an anti-prismatic environnement, three squarate groups, one and a half protonated ethyl-enediamine mol-ecules and four water mol-ecules. YO(8) polyhedra are connected through bis-(mono-dentate) squarates, leading to infinite zigzag chains, in between which are located ammonium groups. A framework of hydrogen bonds between protonated amine N atoms, water mol-ecules and squarate anions ensures the cohesion of the structure.

Related literature

For a related structure, see: Kazerouni et al. (1994) ▶. The title compound was obtained together with two polymorphs of (C2H10N2)(HC4O4)2(H2O) (Mathew et al., 2002 ▶; Zenkhri et al., 2011) ▶. For related yttrium squarates with potassium, see: Mahé & Bataille (2004 ▶).

Experimental

Crystal data

(C2H10N2)1.5[Y(C4O4)3(H2O)4]

M = 590.27

Monoclinic,

a = 8.9780 (2) Å

b = 13.2864 (3) Å

c = 18.3970 (4) Å

β = 90.935 (1)°

V = 2194.20 (8) Å3

Z = 4

Mo Kα radiation

μ = 2.75 mm−1

T = 293 K

0.22 × 0.14 × 0.12 mm

Data collection

Nonius KappaCCD diffractometer

Absorption correction: analytical (de Meulenaer & Tompa, 1965) ▶ T min = 0.583, T max = 0.734

23285 measured reflections

5016 independent reflections

4140 reflections with I > 2σ(I)

R int = 0.065

Refinement

R[F 2 > 2σ(F 2)] = 0.041

wR(F 2) = 0.103

S = 1.10

5016 reflections

316 parameters

H-atom parameters constrained

Δρmax = 1.77 e Å−3

Δρmin = −0.62 e Å−3

Data collection: COLLECT (Nonius, 2000 ▶); cell refinement: DIRAX/LSQ (Duisenberg, 1992 ▶); data reduction: EVALCCD (Duisenberg et al., 2003 ▶); program(s) used to solve structure: SIR97 (Altomare et al., 1999 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: DIAMOND (Brandenburg & Berndt, 2001 ▶); software used to prepare material for publication: WinGX publication routines (Farrugia, 1999 ▶).

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536811011251/ru2003sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536811011251/ru2003Isup2.hkl

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

(C2H10N2)1.5[Y(C4O4)3(H2O)4]	F(000) = 1204
Mr = 590.27	Dx = 1.787 Mg m−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
a = 8.9780 (2) Å	Cell parameters from 57148 reflections
b = 13.2864 (3) Å	θ = 2.9–27.5°
c = 18.3970 (4) Å	µ = 2.75 mm−1
β = 90.935 (1)°	T = 293 K
V = 2194.20 (8) Å3	Prism, colourless
Z = 4	0.22 × 0.14 × 0.12 mm

Nonius KappaCCD diffractometer	5016 independent reflections
Radiation source: fine-focus sealed tube	4140 reflections with I > 2σ(I)
horizonally mounted graphite crystal	Rint = 0.065
Detector resolution: 9 pixels mm-1	θmax = 27.5°, θmin = 2.9°
CCD scans	h = −11→11
Absorption correction: analytical (de Meulenaer & Tompa, 1965)	k = −17→17
Tmin = 0.583, Tmax = 0.734	l = −23→23
23285 measured reflections

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)] = 0.041	Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.103	H-atom parameters constrained
S = 1.10	w = 1/[σ2(Fo2) + (0.0368P)2 + 4.9093P] where P = (Fo2 + 2Fc2)/3
5016 reflections	(Δ/σ)max = 0.002
316 parameters	Δρmax = 1.77 e Å−3
0 restraints	Δρmin = −0.62 e Å−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 > 2σ(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
Y1	0.81967 (3)	0.09385 (2)	0.775395 (16)	0.01739 (9)
OW1	0.6982 (2)	−0.02399 (18)	0.69447 (13)	0.0255 (5)
H911	0.6156	−0.0626	0.7085	0.038*
H912	0.7647	−0.0720	0.6785	0.038*
OW2	0.5760 (3)	0.15385 (18)	0.74497 (16)	0.0332 (6)
H921	0.4774	0.1303	0.7446	0.050*
H922	0.5568	0.2216	0.7550	0.050*
OW3	0.7609 (4)	0.1825 (2)	0.88343 (19)	0.0653 (12)
H931	0.7880	0.2376	0.9116	0.098*
H932	0.7345	0.1447	0.9243	0.098*
OW4	1.0544 (3)	0.16009 (19)	0.82212 (15)	0.0332 (6)
H941	1.1451	0.1438	0.8013	0.050*
H942	1.0623	0.2267	0.8356	0.050*
C1	0.3965 (4)	−0.0751 (3)	0.9370 (2)	0.0344 (9)
O1	0.2824 (3)	−0.0919 (3)	0.97182 (19)	0.0618 (10)
C2	0.4625 (4)	0.0166 (3)	0.90558 (19)	0.0308 (8)
O2	0.4298 (4)	0.1078 (2)	0.90299 (18)	0.0567 (9)
C3	0.5884 (4)	−0.0427 (2)	0.88126 (17)	0.0215 (6)
O3	0.7096 (2)	−0.02378 (17)	0.84855 (13)	0.0260 (5)
C4	0.5259 (4)	−0.1337 (3)	0.91110 (19)	0.0270 (7)
O4	0.5696 (3)	−0.2235 (2)	0.91517 (16)	0.0389 (6)
C5	0.9863 (4)	−0.0763 (2)	0.60978 (17)	0.0212 (6)
O5	0.8971 (3)	−0.14412 (17)	0.62986 (14)	0.0283 (5)
C6	1.0043 (4)	0.0306 (2)	0.62387 (17)	0.0212 (6)
O6	0.9443 (3)	0.09575 (17)	0.66401 (13)	0.0278 (5)
C7	1.1316 (4)	0.0349 (2)	0.57414 (18)	0.0228 (6)
O7	1.2148 (3)	0.10214 (18)	0.55251 (16)	0.0356 (6)
C8	1.1158 (4)	−0.0751 (2)	0.56315 (18)	0.0227 (7)
O8	1.1858 (3)	−0.14202 (19)	0.53033 (16)	0.0368 (6)
C9	0.8814 (3)	0.4399 (2)	0.72880 (17)	0.0190 (6)
O9	1.0131 (2)	0.46219 (16)	0.71244 (13)	0.0244 (5)
C10	0.7446 (4)	0.4939 (2)	0.74815 (18)	0.0225 (6)
O10	0.7095 (3)	0.58392 (18)	0.75490 (17)	0.0360 (6)
C11	0.6683 (3)	0.3960 (2)	0.75669 (18)	0.0216 (6)
O11	0.5417 (3)	0.3661 (2)	0.77318 (16)	0.0351 (6)
C12	0.8066 (3)	0.3451 (2)	0.73838 (17)	0.0203 (6)
O12	0.8488 (3)	0.25554 (17)	0.73267 (15)	0.0316 (6)
N1	0.1150 (3)	0.2173 (2)	1.13530 (16)	0.0276 (6)
H11	0.1863	0.2579	1.1230	0.033*
H12	0.1531	0.1615	1.1520	0.033*
H13	0.0618	0.2454	1.1688	0.033*
C13	0.0190 (4)	0.1952 (3)	1.0706 (2)	0.0315 (8)
H131	−0.0192	0.2581	1.0511	0.038*
H132	−0.0654	0.1553	1.0858	0.038*
C14	0.0985 (4)	0.1398 (3)	1.0114 (2)	0.0317 (8)
H141	0.1488	0.0817	1.0323	0.038*
H142	0.0257	0.1156	0.9760	0.038*
N2	0.2096 (3)	0.2041 (2)	0.97398 (16)	0.0300 (7)
H21	0.2778	0.2278	1.0107	0.036*
H22	0.1607	0.2561	0.9477	0.036*
H23	0.2683	0.1717	0.9464	0.036*
N3	0.4125 (4)	−0.4070 (3)	0.93482 (18)	0.0392 (8)
H31	0.4774	−0.3779	0.9072	0.047*
H32	0.3940	−0.3685	0.9718	0.047*
H33	0.3306	−0.4175	0.9100	0.047*
C15	0.4730 (4)	−0.5043 (3)	0.9610 (2)	0.0348 (9)
H151	0.5550	−0.5246	0.9306	0.042*
H152	0.3963	−0.5555	0.9574	0.042*

	U11	U22	U33	U12	U13	U23
Y1	0.01584 (14)	0.01229 (13)	0.02423 (15)	0.00006 (11)	0.00636 (10)	0.00037 (12)
OW1	0.0212 (11)	0.0241 (12)	0.0313 (12)	−0.0036 (9)	0.0061 (9)	−0.0030 (10)
OW2	0.0161 (11)	0.0211 (12)	0.0625 (18)	0.0014 (9)	0.0049 (11)	0.0036 (12)
OW3	0.099 (3)	0.0388 (17)	0.060 (2)	−0.0325 (18)	0.055 (2)	−0.0255 (15)
OW4	0.0302 (13)	0.0235 (12)	0.0456 (16)	−0.0003 (10)	−0.0048 (11)	−0.0100 (11)
C1	0.0197 (16)	0.058 (3)	0.0259 (18)	−0.0034 (16)	0.0021 (13)	0.0039 (16)
O1	0.0269 (15)	0.104 (3)	0.055 (2)	−0.0107 (17)	0.0177 (14)	0.011 (2)
C2	0.0284 (18)	0.042 (2)	0.0228 (17)	0.0099 (16)	0.0066 (14)	0.0032 (15)
O2	0.068 (2)	0.0505 (19)	0.0524 (19)	0.0358 (17)	0.0266 (17)	0.0089 (15)
C3	0.0219 (15)	0.0236 (16)	0.0190 (15)	0.0011 (13)	0.0032 (12)	0.0002 (12)
O3	0.0234 (11)	0.0234 (12)	0.0317 (13)	0.0022 (9)	0.0116 (10)	0.0058 (10)
C4	0.0217 (16)	0.0335 (18)	0.0257 (17)	−0.0081 (14)	−0.0004 (13)	0.0042 (14)
O4	0.0408 (15)	0.0259 (13)	0.0498 (17)	−0.0086 (12)	0.0008 (13)	0.0090 (12)
C5	0.0258 (16)	0.0155 (14)	0.0224 (15)	0.0002 (12)	0.0017 (12)	0.0011 (11)
O5	0.0297 (12)	0.0183 (11)	0.0373 (14)	−0.0060 (10)	0.0110 (10)	−0.0002 (10)
C6	0.0249 (15)	0.0158 (14)	0.0232 (16)	−0.0003 (12)	0.0055 (12)	0.0006 (12)
O6	0.0352 (13)	0.0170 (11)	0.0317 (13)	−0.0019 (10)	0.0166 (10)	−0.0012 (10)
C7	0.0238 (16)	0.0182 (15)	0.0265 (16)	0.0022 (12)	0.0068 (13)	0.0024 (12)
O7	0.0364 (14)	0.0196 (12)	0.0517 (16)	−0.0027 (11)	0.0238 (12)	0.0033 (11)
C8	0.0243 (16)	0.0182 (15)	0.0258 (16)	0.0005 (12)	0.0025 (13)	−0.0006 (12)
O8	0.0382 (14)	0.0227 (13)	0.0500 (17)	0.0037 (11)	0.0193 (12)	−0.0081 (11)
C9	0.0183 (14)	0.0160 (14)	0.0229 (15)	0.0008 (11)	0.0034 (12)	−0.0004 (12)
O9	0.0177 (11)	0.0168 (11)	0.0390 (14)	−0.0030 (9)	0.0086 (9)	−0.0019 (10)
C10	0.0195 (15)	0.0193 (15)	0.0289 (17)	0.0032 (12)	0.0023 (12)	−0.0001 (13)
O10	0.0253 (12)	0.0161 (12)	0.0668 (19)	0.0064 (10)	0.0064 (12)	−0.0027 (12)
C11	0.0174 (14)	0.0193 (15)	0.0282 (16)	0.0020 (12)	0.0045 (12)	0.0017 (13)
O11	0.0181 (11)	0.0275 (13)	0.0602 (18)	0.0025 (10)	0.0131 (11)	0.0071 (12)
C12	0.0185 (14)	0.0177 (14)	0.0247 (16)	0.0015 (12)	0.0040 (12)	0.0036 (12)
O12	0.0275 (12)	0.0132 (11)	0.0546 (16)	0.0009 (9)	0.0149 (11)	0.0046 (11)
N1	0.0320 (15)	0.0198 (13)	0.0314 (16)	0.0027 (12)	0.0110 (12)	0.0010 (12)
C13	0.0216 (16)	0.0338 (19)	0.039 (2)	0.0014 (14)	0.0029 (14)	0.0051 (16)
C14	0.040 (2)	0.0239 (17)	0.0309 (19)	0.0005 (15)	−0.0044 (15)	0.0000 (14)
N2	0.0353 (16)	0.0283 (15)	0.0267 (15)	0.0109 (13)	0.0061 (12)	−0.0009 (12)
N3	0.0367 (18)	0.046 (2)	0.0351 (17)	−0.0108 (16)	0.0085 (14)	−0.0034 (15)
C15	0.0296 (18)	0.044 (2)	0.031 (2)	−0.0111 (16)	0.0079 (15)	−0.0092 (16)

Y1—O3	2.297 (2)	C8—O8	1.250 (4)
Y1—O12	2.304 (2)	C9—O9	1.261 (4)
Y1—O9i	2.314 (2)	C9—C12	1.439 (4)
Y1—O6	2.351 (2)	C9—C10	1.471 (4)
Y1—OW3	2.377 (3)	O9—Y1ii	2.314 (2)
Y1—OW2	2.386 (2)	C10—O10	1.244 (4)
Y1—OW1	2.409 (2)	C10—C11	1.479 (4)
Y1—OW4	2.428 (2)	C11—O11	1.247 (4)
OW1—H911	0.9405	C11—C12	1.458 (4)
OW1—H912	0.9255	C12—O12	1.254 (4)
OW2—H921	0.9388	N1—C13	1.487 (5)
OW2—H922	0.9354	N1—H11	0.8700
OW3—H931	0.9277	N1—H12	0.8700
OW3—H932	0.9382	N1—H13	0.8700
OW4—H941	0.9307	C13—C14	1.504 (5)
OW4—H942	0.9214	C13—H131	0.9700
C1—O1	1.237 (4)	C13—H132	0.9700
C1—C2	1.476 (5)	C14—N2	1.491 (5)
C1—C4	1.484 (5)	C14—H141	0.9700
C2—O2	1.249 (5)	C14—H142	0.9700
C2—C3	1.454 (5)	N2—H21	0.9571
C3—O3	1.277 (4)	N2—H22	0.9479
C3—C4	1.445 (5)	N2—H23	0.8528
C4—O4	1.257 (5)	N3—C15	1.479 (5)
C5—O5	1.265 (4)	N3—H31	0.8700
C5—C6	1.453 (4)	N3—H32	0.8700
C5—C8	1.456 (4)	N3—H33	0.8700
C6—O6	1.264 (4)	C15—C15iii	1.512 (8)
C6—C7	1.476 (4)	C15—H151	0.9700
C7—O7	1.234 (4)	C15—H152	0.9700
C7—C8	1.482 (4)
O3—Y1—O12	152.48 (8)	C5—C6—C7	90.7 (3)
O3—Y1—O9i	73.35 (8)	C6—O6—Y1	135.7 (2)
O12—Y1—O9i	131.37 (8)	O7—C7—C6	134.9 (3)
O3—Y1—O6	137.19 (8)	O7—C7—C8	136.6 (3)
O12—Y1—O6	68.55 (8)	C6—C7—C8	88.4 (2)
O9i—Y1—O6	77.00 (8)	O8—C8—C5	133.6 (3)
O3—Y1—OW3	75.14 (9)	O8—C8—C7	136.0 (3)
O12—Y1—OW3	81.46 (10)	C5—C8—C7	90.3 (2)
O9i—Y1—OW3	116.50 (12)	O9—C9—C12	132.6 (3)
O6—Y1—OW3	147.03 (9)	O9—C9—C10	137.1 (3)
O3—Y1—OW2	87.89 (8)	C12—C9—C10	90.2 (2)
O12—Y1—OW2	73.57 (8)	C9—O9—Y1ii	139.9 (2)
O9i—Y1—OW2	150.02 (8)	O10—C10—C9	135.0 (3)
O6—Y1—OW2	103.86 (9)	O10—C10—C11	135.7 (3)
OW3—Y1—OW2	79.37 (13)	C9—C10—C11	89.2 (2)
O3—Y1—OW1	74.04 (8)	O11—C11—C12	133.8 (3)
O12—Y1—OW1	116.61 (9)	O11—C11—C10	137.0 (3)
O9i—Y1—OW1	81.66 (8)	C12—C11—C10	89.2 (2)
O6—Y1—OW1	71.68 (8)	O12—C12—C9	132.7 (3)
OW3—Y1—OW1	137.23 (10)	O12—C12—C11	135.9 (3)
OW2—Y1—OW1	70.61 (9)	C9—C12—C11	91.4 (2)
O3—Y1—OW4	114.74 (9)	C12—O12—Y1	145.1 (2)
O12—Y1—OW4	71.35 (9)	C13—N1—H11	109.5
O9i—Y1—OW4	71.44 (8)	C13—N1—H12	109.5
O6—Y1—OW4	83.21 (9)	H11—N1—H12	109.5
OW3—Y1—OW4	74.20 (11)	C13—N1—H13	109.5
OW2—Y1—OW4	138.51 (9)	H11—N1—H13	109.5
OW1—Y1—OW4	146.71 (8)	H12—N1—H13	109.5
Y1—OW1—H911	122.4	N1—C13—C14	113.6 (3)
Y1—OW1—H912	110.8	N1—C13—H131	108.8
H911—OW1—H912	103.1	C14—C13—H131	108.8
Y1—OW2—H921	138.7	N1—C13—H132	108.8
Y1—OW2—H922	116.5	C14—C13—H132	108.8
H921—OW2—H922	98.3	H131—C13—H132	107.7
Y1—OW3—H931	142.9	N2—C14—C13	112.5 (3)
Y1—OW3—H932	117.9	N2—C14—H141	109.1
H931—OW3—H932	92.4	C13—C14—H141	109.1
Y1—OW4—H941	122.0	N2—C14—H142	109.1
Y1—OW4—H942	120.4	C13—C14—H142	109.1
H941—OW4—H942	105.7	H141—C14—H142	107.8
O1—C1—C2	133.9 (4)	C14—N2—H21	106.7
O1—C1—C4	136.9 (4)	C14—N2—H22	110.2
C2—C1—C4	89.2 (3)	H21—N2—H22	113.9
O2—C2—C3	134.3 (4)	C14—N2—H23	114.2
O2—C2—C1	136.1 (3)	H21—N2—H23	101.0
C3—C2—C1	89.6 (3)	H22—N2—H23	110.5
O3—C3—C4	133.1 (3)	C15—N3—H31	109.5
O3—C3—C2	135.3 (3)	C15—N3—H32	109.5
C4—C3—C2	91.6 (3)	H31—N3—H32	109.5
C3—O3—Y1	142.0 (2)	C15—N3—H33	109.5
O4—C4—C3	133.9 (3)	H31—N3—H33	109.5
O4—C4—C1	136.4 (3)	H32—N3—H33	109.5
C3—C4—C1	89.6 (3)	N3—C15—C15iii	110.7 (4)
O5—C5—C6	135.6 (3)	N3—C15—H151	109.5
O5—C5—C8	134.0 (3)	C15iii—C15—H151	109.5
C6—C5—C8	90.4 (2)	N3—C15—H152	109.5
O6—C6—C5	136.6 (3)	C15iii—C15—H152	109.5
O6—C6—C7	132.6 (3)	H151—C15—H152	108.1

D—H···A	D—H	H···A	D···A	D—H···A
N1—H12···O3iv	0.87	2.21	3.027 (4)	157
N1—H12···O9v	0.87	2.36	2.929 (4)	123
N1—H11···O4iv	0.87	2.36	2.995 (4)	131
N1—H11···O7v	0.87	2.28	2.987 (4)	138
N1—H13···O6v	0.87	2.36	2.970 (4)	127
N1—H13···O12v	0.87	2.26	3.032 (4)	148
N2—H23···O2	0.85	1.87	2.707 (4)	167
N2—H21···O4iv	0.96	1.92	2.832 (4)	159
N2—H21···O7v	0.96	2.46	2.952 (4)	112
N2—H22···O5vi	0.95	2.01	2.929 (4)	163
N3—H31···O4	0.87	2.22	2.843 (4)	129
N3—H32···O8vii	0.87	2.18	2.788 (4)	127
N3—H33···OW1viii	0.87	2.40	2.997 (4)	126
OW1—H911···O11viii	0.94	1.74	2.676 (3)	175
OW1—H912···O5	0.93	1.78	2.687 (3)	166
OW2—H922···O11	0.94	1.95	2.885 (4)	173
OW2—H921···O10viii	0.94	1.79	2.726 (3)	179
OW3—H931···O8ii	0.93	1.94	2.857 (4)	172
OW3—H932···O1iv	0.94	2.04	2.954 (5)	163
OW4—H942···O5ii	0.92	1.86	2.779 (3)	172
OW4—H941···O10i	0.93	1.86	2.761 (4)	163

Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H12⋯O3i	0.87	2.21	3.027 (4)	157
N1—H12⋯O9ii	0.87	2.36	2.929 (4)	123
N1—H11⋯O4i	0.87	2.36	2.995 (4)	131
N1—H11⋯O7ii	0.87	2.28	2.987 (4)	138
N1—H13⋯O6ii	0.87	2.36	2.970 (4)	127
N1—H13⋯O12ii	0.87	2.26	3.032 (4)	148
N2—H23⋯O2	0.85	1.87	2.707 (4)	167
N2—H21⋯O4i	0.96	1.92	2.832 (4)	159
N2—H21⋯O7ii	0.96	2.46	2.952 (4)	112
N2—H22⋯O5iii	0.95	2.01	2.929 (4)	163
N3—H31⋯O4	0.87	2.22	2.843 (4)	129
N3—H32⋯O8iv	0.87	2.18	2.788 (4)	127
N3—H33⋯OW1v	0.87	2.40	2.997 (4)	126
OW1—H911⋯O11v	0.94	1.74	2.676 (3)	175
OW1—H912⋯O5	0.93	1.78	2.687 (3)	166
OW2—H922⋯O11	0.94	1.95	2.885 (4)	173
OW2—H921⋯O10v	0.94	1.79	2.726 (3)	179
OW3—H931⋯O8vi	0.93	1.94	2.857 (4)	172
OW3—H932⋯O1i	0.94	2.04	2.954 (5)	163
OW4—H942⋯O5vi	0.92	1.86	2.779 (3)	172
OW4—H941⋯O10vii	0.93	1.86	2.761 (4)	163

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) .