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Acta Cryst. (2007). E63, m2526-m2527    [ doi:10.1107/S1600536807043899 ]

Poly[bis[diaqua(isonicotinato-[kappa]2O,O')dysprosium(III)][bis(isonicotinato-[kappa]O)copper(II)]tetra([mu]3-isonicotinato-[kappa]3O:O':N)]

D.-Z. Kuang, Y.-L. Feng, Y.-L. Peng and Y.-F. Deng

Abstract top

The title compound, {[Dy(C6H4NO2)(H2O)2]2[Cu(C6H4NO2)2](C6H4NO2)4}n, is a three-dimensional coordination polymer. The six-coordinate CuII atom, lying on an inversion center, is bonded to two O atoms from two monodentate isonicotinate ligands and four N atoms from four bridging isonicotinate ligands. Two DyIII atoms form a centrosymmetric dinuclear unit and each DyIII atom is eight-coordinated by six O atoms from five different isonicotinate ligands and two O atoms from two water molecules. These metal coordination units are connected by the bridging isonicotinate ligands, generating a three-dimensional network. The crystal structure is further stabilized by hydrogen bonds.

Comment top

In the past few years, more extensive attention had been paid to the research on the chemistry of heterometallic complexes containing simultaneously lanthanide and transition metal ions (Costs et al., 1998; Kahn et al., 1999; Sanz et al., 1996). As an extension of this research, we report here the structure of the title compound, a new heterometallic coordination polymer,

In the title compound (Fig. 1), the CuII atom lies on an inversion center and is six-coordinated by two O atoms from two monodentate isonicotinate ligands and four N atoms from the other four isonicotinate ligands. Thus the CuII atom has a slight distorted octahedral coordination geometry. The DyIII atom is eight-coordinated by six O atoms from five different isonicotinate ligands and two O atoms from two water molecules in a square antiprism geometry (Table 1). The adjacent Cu and Dy coordination units are bridged by the tridentate isonicotinate ligands, forming a three-dimensional network structure (Fig. 2).

Related literature top

For related literature, see: Costs et al. (1998); Kahn et al. (1999); Sanz et al. (1996).

Experimental top

A mixture of CuO (0.082 g, 1.0 mmol), Dy2O3 (0.181 g, 0.5 mmol), isonicotinic acid (0.248 g, 2.0 mmol), H2O (10 ml, 0.55 mmol) and two drops of acetic acid, with a pH value about 2.0, was sealed in a 25 ml Teflon-lined reaction vessel at 443 K for 5 d. The reaction mixture was cooled to room temperature over a period of 48 h. The product was collected by filtration, washed with water and air-dried. Blue block crystals suitable for X-ray analysis were obtained. Analysis, calculated for C48H40CuDy2N8O20: C 40.11, H 2.80, N 7.80%; found: C 40.05; H 2.59, N 7.97%.

Refinement top

H atoms bonded to C atoms were positioned geometrically and refined as riding, with C—H = 0.93Å and Uiso(H) = 1.2Ueq(C). H atoms of water molecules were found from difference Fourier maps and refined isotropically with a restraint of O—H = 0.82 (1) Å.

Computing details top

Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2001); software used to prepare material for publication: SHELXTL (Bruker, 2001).

Figures top
[Figure 1] Fig. 1. The asymmetric unit of the title compound, together with symmetry-related atoms to complete the coordination units. Displacement ellipsoids are drawn at the 50% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) −x + 1, −y, −z + 1; (iii) −x + 1/2, y − 1/2, −z + 3/2; (iv) 1/2 + x, 1/2 − y, −1/2 + z.]
[Figure 2] Fig. 2. A view of the three-dimensional structure of the title compound. Dotted lines denote hydrogen bonds.
Poly[bis[diaqua(isonicotinato-κ2O,O')dysprosium(III)] [bis(isonicotinato-κO)copper(II)]tetra(µ3-isonicotinato-κ3O:O':N)] top
Crystal data top
[Dy2Cu(C6H4NO2)8(H2O)4]F000 = 1410
Mr = 1437.43Dx = 1.861 Mg m−3
Monoclinic, P21/nMo Kα radiation
λ = 0.71073 Å
Hall symbol: -P 2ynCell parameters from 4174 reflections
a = 9.456 (1) Åθ = 2.6–14.6º
b = 14.966 (3) ŵ = 3.38 mm−1
c = 18.166 (4) ÅT = 294 (2) K
β = 93.74 (1)ºBlock, blue
V = 2565.4 (8) Å30.54 × 0.42 × 0.28 mm
Z = 2
Data collection top
Bruker SMART 1000 CCD area-detector
diffractometer		4638 independent reflections
Radiation source: normal-focus sealed tube3853 reflections with I > 2σ(I)
Monochromator: graphiteRint = 0.018
T = 294(2) Kθmax = 25.3º
φ and ω scansθmin = 1.8º
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		h = 0→11
Tmin = 0.199, Tmax = 0.391k = 0→17
5313 measured reflectionsl = −21→21
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.026H atoms treated by a mixture of
independent and constrained refinement
wR(F2) = 0.058  w = 1/[σ2(Fo2) + (0.0289P)2]
where P = (Fo2 + 2Fc2)/3
S = 1.03(Δ/σ)max = 0.002
4638 reflectionsΔρmax = 0.61 e Å−3
375 parametersΔρmin = −0.89 e Å−3
4 restraintsExtinction correction: SHELXL97
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.00120 (9)
Crystal data top
[Dy2Cu(C6H4NO2)8(H2O)4]V = 2565.4 (8) Å3
Mr = 1437.43Z = 2
Monoclinic, P21/nMo Kα
a = 9.456 (1) ŵ = 3.38 mm−1
b = 14.966 (3) ÅT = 294 (2) K
c = 18.166 (4) Å0.54 × 0.42 × 0.28 mm
β = 93.74 (1)º
Data collection top
Bruker SMART 1000 CCD area-detector
diffractometer		4638 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		3853 reflections with I > 2σ(I)
Tmin = 0.199, Tmax = 0.391Rint = 0.018
5313 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0264 restraints
wR(F2) = 0.058H atoms treated by a mixture of
independent and constrained refinement
S = 1.03Δρmax = 0.61 e Å−3
4638 reflectionsΔρmin = −0.89 e Å−3
375 parameters
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Dy0.195701 (18)0.583911 (12)0.500576 (9)0.01381 (7)
Cu0.50000.00000.50000.01940 (16)
O10.2280 (3)0.43001 (18)0.50421 (17)0.0337 (8)
O20.0274 (3)0.3543 (2)0.50973 (19)0.0402 (8)
O30.3581 (3)−0.05366 (19)0.42852 (15)0.0255 (7)
O40.1845 (3)−0.1225 (2)0.48600 (15)0.0345 (8)
O50.3964 (3)0.56810 (18)0.41742 (14)0.0243 (6)
O60.2726 (3)0.69240 (19)0.41176 (15)0.0298 (7)
O70.1052 (4)0.5477 (2)0.61110 (16)0.0390 (8)
O8−0.0907 (3)0.4660 (2)0.61044 (16)0.0398 (8)
O90.2216 (3)0.7219 (2)0.56835 (17)0.0281 (7)
O100.4068 (3)0.5705 (2)0.57715 (16)0.0272 (7)
N10.3863 (3)0.1131 (2)0.49738 (16)0.0168 (7)
N20.0145 (4)−0.1238 (3)0.2173 (2)0.0425 (11)
N30.5756 (5)0.7292 (3)0.1969 (2)0.0467 (11)
N40.0917 (4)0.4501 (4)0.8722 (2)0.0475 (12)
C10.4533 (4)0.1926 (3)0.4982 (2)0.0230 (9)
H10.55170.19330.49880.028*
C20.3828 (4)0.2722 (3)0.4983 (2)0.0215 (9)
H20.43290.32570.49870.026*
C30.2366 (4)0.2729 (3)0.4979 (2)0.0194 (9)
C40.1649 (4)0.1919 (3)0.4943 (2)0.0221 (9)
H40.06640.19000.49190.027*
C50.2442 (4)0.1140 (3)0.4944 (2)0.0220 (9)
H50.19640.05970.49240.026*
C60.1574 (4)0.3599 (3)0.5038 (2)0.0220 (9)
C70.1288 (6)−0.0714 (4)0.2280 (3)0.0491 (15)
H70.1616−0.04170.18750.059*
C80.2008 (5)−0.0592 (3)0.2961 (2)0.0385 (12)
H80.2775−0.02020.30080.046*
C90.1591 (4)−0.1045 (3)0.3564 (2)0.0227 (9)
C100.0435 (4)−0.1607 (3)0.3463 (2)0.0300 (10)
H100.0117−0.19310.38570.036*
C11−0.0242 (5)−0.1681 (3)0.2768 (3)0.0374 (12)
H11−0.1016−0.20640.27090.045*
C120.2395 (4)−0.0932 (3)0.4307 (2)0.0230 (9)
C130.6322 (6)0.6681 (4)0.2435 (3)0.0545 (16)
H130.72000.64440.23370.065*
C140.5697 (5)0.6376 (4)0.3052 (3)0.0424 (13)
H140.61480.59500.33570.051*
C150.4397 (4)0.6712 (3)0.3210 (2)0.0255 (9)
C160.3780 (5)0.7340 (3)0.2730 (2)0.0397 (12)
H160.29010.75840.28140.048*
C170.4488 (6)0.7599 (4)0.2122 (3)0.0497 (14)
H170.40510.80140.18010.060*
C180.3660 (4)0.6428 (3)0.3878 (2)0.0192 (9)
C190.1568 (5)0.5134 (4)0.8384 (3)0.0528 (16)
H190.21870.54950.86710.063*
C200.1418 (5)0.5311 (4)0.7644 (2)0.0373 (12)
H200.19300.57670.74380.045*
C210.0486 (4)0.4793 (3)0.7215 (2)0.0214 (9)
C22−0.0190 (4)0.4097 (3)0.7547 (2)0.0292 (10)
H22−0.08120.37230.72750.035*
C230.0088 (5)0.3974 (4)0.8296 (3)0.0418 (13)
H23−0.03340.34900.85160.050*
C240.0185 (4)0.4987 (3)0.6407 (2)0.0210 (9)
H9A0.223 (5)0.7683 (18)0.545 (2)0.043 (16)*
H9B0.178 (4)0.734 (3)0.6043 (15)0.033 (13)*
H10A0.468 (4)0.533 (2)0.572 (3)0.043 (16)*
H10B0.433 (6)0.592 (4)0.6169 (17)0.08 (2)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Dy0.01477 (10)0.01319 (10)0.01358 (10)0.00195 (9)0.00165 (6)0.00091 (8)
Cu0.0195 (3)0.0130 (3)0.0247 (4)0.0058 (3)−0.0065 (3)−0.0050 (3)
O10.0367 (19)0.0121 (16)0.052 (2)0.0043 (14)0.0036 (15)0.0001 (14)
O20.0233 (17)0.0296 (19)0.068 (2)0.0145 (15)0.0071 (16)0.0005 (17)
O30.0259 (16)0.0243 (16)0.0250 (15)0.0031 (13)−0.0088 (12)−0.0052 (12)
O40.045 (2)0.0325 (18)0.0256 (17)0.0004 (16)0.0011 (15)0.0013 (14)
O50.0253 (15)0.0255 (17)0.0229 (14)0.0021 (13)0.0075 (12)0.0046 (12)
O60.0399 (18)0.0192 (16)0.0324 (16)0.0038 (14)0.0184 (14)0.0026 (13)
O70.054 (2)0.042 (2)0.0232 (16)−0.0082 (18)0.0164 (15)0.0048 (15)
O80.0355 (18)0.060 (2)0.0224 (16)−0.0039 (18)−0.0074 (14)−0.0027 (16)
O90.0396 (18)0.0194 (17)0.0267 (17)−0.0007 (15)0.0140 (14)−0.0017 (14)
O100.0242 (16)0.0313 (19)0.0248 (16)0.0093 (15)−0.0086 (13)−0.0053 (14)
N10.0174 (16)0.0169 (17)0.0158 (15)0.0039 (14)−0.0022 (13)−0.0021 (13)
N20.048 (3)0.041 (2)0.035 (2)−0.007 (2)−0.0195 (19)0.005 (2)
N30.063 (3)0.040 (3)0.041 (2)0.004 (2)0.029 (2)0.011 (2)
N40.041 (2)0.082 (4)0.019 (2)0.003 (3)−0.0027 (18)0.009 (2)
C10.016 (2)0.022 (2)0.031 (2)−0.0044 (18)0.0064 (17)−0.0001 (18)
C20.016 (2)0.018 (2)0.030 (2)−0.0011 (17)−0.0006 (16)−0.0022 (18)
C30.023 (2)0.014 (2)0.022 (2)0.0114 (17)0.0023 (17)0.0010 (16)
C40.015 (2)0.021 (2)0.030 (2)0.0027 (17)0.0022 (17)−0.0006 (18)
C50.028 (2)0.014 (2)0.024 (2)−0.0027 (18)0.0012 (17)−0.0031 (16)
C60.024 (2)0.021 (2)0.021 (2)0.0081 (18)−0.0023 (17)−0.0011 (17)
C70.060 (3)0.052 (4)0.033 (3)−0.018 (3)−0.016 (2)0.017 (3)
C80.042 (3)0.036 (3)0.036 (3)−0.016 (2)−0.015 (2)0.013 (2)
C90.023 (2)0.019 (2)0.025 (2)0.0030 (18)−0.0035 (17)−0.0009 (17)
C100.027 (2)0.030 (3)0.032 (2)−0.004 (2)0.0017 (19)−0.002 (2)
C110.032 (3)0.036 (3)0.042 (3)−0.008 (2)−0.011 (2)−0.004 (2)
C120.029 (2)0.014 (2)0.025 (2)0.0058 (19)−0.0040 (17)−0.0054 (18)
C130.051 (3)0.055 (4)0.063 (4)0.017 (3)0.039 (3)0.019 (3)
C140.036 (3)0.047 (3)0.046 (3)0.011 (2)0.017 (2)0.018 (2)
C150.027 (2)0.027 (2)0.023 (2)−0.001 (2)0.0096 (18)−0.0005 (18)
C160.045 (3)0.038 (3)0.039 (3)0.012 (2)0.018 (2)0.012 (2)
C170.063 (4)0.044 (3)0.044 (3)0.010 (3)0.020 (3)0.019 (3)
C180.0154 (19)0.023 (2)0.019 (2)−0.0054 (18)−0.0009 (16)0.0014 (17)
C190.043 (3)0.093 (5)0.023 (3)−0.017 (3)−0.001 (2)−0.017 (3)
C200.036 (3)0.053 (3)0.023 (2)−0.014 (2)0.0017 (19)−0.004 (2)
C210.021 (2)0.029 (2)0.0154 (19)0.0051 (19)0.0068 (16)−0.0001 (17)
C220.030 (2)0.033 (3)0.024 (2)−0.002 (2)0.0009 (18)0.000 (2)
C230.052 (3)0.043 (3)0.031 (3)0.005 (3)0.014 (2)0.014 (2)
C240.024 (2)0.025 (2)0.0138 (19)0.0036 (19)−0.0014 (17)−0.0001 (17)
Geometric parameters (Å, °) top
Dy—O72.298 (3)C1—C21.365 (5)
Dy—O2i2.300 (3)C1—H10.9300
Dy—O8i2.313 (3)C2—C31.382 (5)
Dy—O12.324 (3)C2—H20.9300
Dy—O102.366 (3)C3—C41.388 (6)
Dy—O92.409 (3)C3—C61.510 (5)
Dy—O62.433 (3)C4—C51.386 (6)
Dy—O52.513 (3)C4—H40.9300
Dy—C182.828 (4)C5—H50.9300
Cu—O31.976 (3)C7—C81.385 (6)
Cu—O3ii1.976 (3)C7—H70.9300
Cu—N12.004 (3)C8—C91.369 (6)
Cu—N1ii2.004 (3)C8—H80.9300
Cu—N4iii2.639 (4)C9—C101.382 (6)
O1—C61.243 (5)C9—C121.515 (5)
O2—C61.244 (5)C10—C111.384 (6)
O2—Dyi2.300 (3)C10—H100.9300
O3—C121.271 (5)C11—H110.9300
O4—C121.240 (5)C13—C141.378 (6)
O5—C181.266 (5)C13—H130.9300
O6—C181.253 (5)C14—C151.376 (6)
O7—C241.248 (5)C14—H140.9300
O8—C241.239 (5)C15—C161.385 (6)
O8—Dyi2.313 (3)C15—C181.499 (5)
O9—H9A0.81 (3)C16—C171.384 (6)
O9—H9B0.82 (3)C16—H160.9300
O10—H10A0.82 (3)C17—H170.9300
O10—H10B0.81 (4)C19—C201.368 (6)
N1—C51.341 (5)C19—H190.9300
N1—C11.348 (5)C20—C211.377 (6)
N2—C111.339 (6)C20—H200.9300
N2—C71.340 (6)C21—C221.382 (6)
N3—C171.331 (6)C21—C241.504 (5)
N3—C131.334 (6)C22—C231.381 (6)
N4—C191.304 (7)C22—H220.9300
N4—C231.325 (7)C23—H230.9300
O7—Dy—O2i76.94 (12)C3—C2—H2120.2
O7—Dy—O8i121.52 (12)C2—C3—C4118.6 (4)
O2i—Dy—O8i73.71 (12)C2—C3—C6120.4 (4)
O7—Dy—O178.31 (12)C4—C3—C6120.9 (3)
O2i—Dy—O1121.25 (11)C5—C4—C3118.1 (3)
O8i—Dy—O175.69 (12)C5—C4—H4120.9
O7—Dy—O1079.29 (11)C3—C4—H4120.9
O2i—Dy—O10144.72 (12)N1—C5—C4123.3 (4)
O8i—Dy—O10141.53 (11)N1—C5—H5118.3
O1—Dy—O1078.16 (11)C4—C5—H5118.3
O7—Dy—O977.68 (11)O1—C6—O2126.1 (4)
O2i—Dy—O976.06 (11)O1—C6—C3117.4 (4)
O8i—Dy—O9138.25 (12)O2—C6—C3116.4 (4)
O1—Dy—O9145.75 (11)N2—C7—C8123.5 (5)
O10—Dy—O973.66 (11)N2—C7—H7118.3
O7—Dy—O6151.75 (11)C8—C7—H7118.3
O2i—Dy—O689.43 (11)C9—C8—C7120.0 (4)
O8i—Dy—O676.52 (11)C9—C8—H8120.0
O1—Dy—O6129.48 (10)C7—C8—H8120.0
O10—Dy—O699.76 (11)C8—C9—C10117.5 (4)
O9—Dy—O675.05 (10)C8—C9—C12120.3 (4)
O7—Dy—O5147.35 (11)C10—C9—C12122.2 (4)
O2i—Dy—O5135.54 (10)C9—C10—C11119.0 (4)
O8i—Dy—O575.13 (10)C9—C10—H10120.5
O1—Dy—O579.68 (10)C11—C10—H10120.5
O10—Dy—O572.79 (10)N2—C11—C10124.2 (4)
O9—Dy—O5109.42 (10)N2—C11—H11117.9
O6—Dy—O552.71 (9)C10—C11—H11117.9
O7—Dy—C18165.56 (11)O4—C12—O3127.4 (4)
O2i—Dy—C18112.24 (11)O4—C12—C9118.0 (4)
O8i—Dy—C1872.62 (11)O3—C12—C9114.6 (4)
O1—Dy—C18104.46 (11)N3—C13—C14124.5 (5)
O10—Dy—C1887.36 (11)N3—C13—H13117.7
O9—Dy—C1893.40 (11)C14—C13—H13117.7
O6—Dy—C1826.21 (10)C15—C14—C13119.1 (5)
O5—Dy—C1826.58 (10)C15—C14—H14120.4
O3—Cu—O3ii180.000 (1)C13—C14—H14120.4
O3—Cu—N189.27 (12)C14—C15—C16117.4 (4)
O3ii—Cu—N190.73 (12)C14—C15—C18122.3 (4)
O3—Cu—N1ii90.73 (12)C16—C15—C18120.2 (4)
O3ii—Cu—N1ii89.27 (12)C17—C16—C15119.2 (4)
N1—Cu—N1ii180.00 (17)C17—C16—H16120.4
O3—Cu—N4iii102.43 (12)C15—C16—H16120.4
O3ii—Cu—N4iii77.57 (12)N3—C17—C16124.0 (5)
N1—Cu—N4iii93.04 (14)N3—C17—H17118.0
N1ii—Cu—N4iii86.96 (14)C16—C17—H17118.0
C6—O1—Dy140.1 (3)O6—C18—O5121.4 (3)
C6—O2—Dyi150.7 (3)O6—C18—C15119.2 (4)
C12—O3—Cu137.0 (3)O5—C18—C15119.3 (4)
C18—O5—Dy90.7 (2)O6—C18—Dy59.05 (19)
C18—O6—Dy94.7 (2)O5—C18—Dy62.69 (19)
C24—O7—Dy143.9 (3)C15—C18—Dy172.3 (3)
C24—O8—Dyi144.4 (3)N4—C19—C20125.5 (5)
Dy—O9—H9A118 (3)N4—C19—H19117.3
Dy—O9—H9B124 (3)C20—C19—H19117.3
H9A—O9—H9B105 (5)C19—C20—C21118.0 (5)
Dy—O10—H10A125 (3)C19—C20—H20121.0
Dy—O10—H10B133 (4)C21—C20—H20121.0
H10A—O10—H10B102 (5)C20—C21—C22118.3 (4)
C5—N1—C1117.4 (3)C20—C21—C24121.2 (4)
C5—N1—Cu123.0 (3)C22—C21—C24120.5 (4)
C1—N1—Cu119.6 (3)C23—C22—C21117.8 (4)
C11—N2—C7115.7 (4)C23—C22—H22121.1
C17—N3—C13115.7 (4)C21—C22—H22121.1
C19—N4—C23115.9 (4)N4—C23—C22124.3 (5)
N1—C1—C2122.8 (3)N4—C23—H23117.8
N1—C1—H1118.6C22—C23—H23117.8
C2—C1—H1118.6O8—C24—O7126.3 (4)
C1—C2—C3119.7 (4)O8—C24—C21117.1 (4)
C1—C2—H2120.2O7—C24—C21116.5 (4)
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1, −y, −z+1; (iii) −x+1/2, y−1/2, −z+3/2.
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O9—H9A···O4iv0.81 (3)1.98 (3)2.778 (4)169 (5)
O9—H9B···N3v0.82 (3)2.07 (3)2.883 (5)176 (5)
O10—H10A···O5vi0.82 (3)1.98 (2)2.784 (4)166 (5)
O10—H10B···N2vii0.81 (4)1.99 (2)2.796 (5)169 (6)
Symmetry codes: (iv) x, y+1, z; (v) x−1/2, −y+3/2, z+1/2; (vi) −x+1, −y+1, −z+1; (vii) x+1/2, −y+1/2, z+1/2.
Table 1
Selected geometric parameters (Å) top
Dy—O72.298 (3)Dy—O62.433 (3)
Dy—O2i2.300 (3)Dy—O52.513 (3)
Dy—O8i2.313 (3)Cu—O31.976 (3)
Dy—O12.324 (3)Cu—N12.004 (3)
Dy—O102.366 (3)Cu—N4ii2.639 (4)
Dy—O92.409 (3)
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1/2, y−1/2, −z+3/2.
Table 2
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O9—H9A···O4iii0.81 (3)1.98 (3)2.778 (4)169 (5)
O9—H9B···N3iv0.82 (3)2.07 (3)2.883 (5)176 (5)
O10—H10A···O5v0.82 (3)1.98 (2)2.784 (4)166 (5)
O10—H10B···N2vi0.81 (4)1.99 (2)2.796 (5)169 (6)
Symmetry codes: (iii) x, y+1, z; (iv) x−1/2, −y+3/2, z+1/2; (v) −x+1, −y+1, −z+1; (vi) x+1/2, −y+1/2, z+1/2.
Acknowledgements top

This work was supported by the Construct Program of the Key Discipline in Hunan Province and Hunan Provincial Natural Science Foundation of China (grant No. 06 J J2015).

references
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