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Acta Cryst. (2009). E65, m779    [ doi:10.1107/S1600536809022028 ]

Bis(6-methoxy-2-{[tris(hydroxymethyl)methyl-[kappa]O]iminomethyl}phenolato-[kappa]2N,O1)nickel(II) dihydrate

T. Zhou, R.-J. Zhou and Z. An

Abstract top

In the title compound, [Ni(C12H16NO5)2]·2H2O, the NiII atom is coordinated by four O atoms and two N atoms from the two 6-methoxy-2-{[tris(hydroxymethyl)methyl]iminomethyl}phenolate ligands in a distorted octahedral coordination geometry. O-H...O hydrogen bonds link the complexes and uncoordinated water molecules into two-dimensional networks parallel to (001).

Comment top

Polymeric metal complexes containing Schiff-base ligands are of interest because of their useful chemical or physical properties (Zhang et al., 1998; Kritagawa & Kondo, 1998; Yaghi et al., 1996). Herein, we report a new crystal structure containing the Schiff-base ligand 6-methoxy-2-{[tris(hydroxymethyl)methyl]iminomethyl}phenol (denoted HL).

As shown in Figure 1, the asymmetric unit of the complex comprises two L- ligands, one NiII atom and two lattice water molecules. The NiII atom is hexa-coordinated by four O atoms and two N atoms from the two L- ligands, giving a distorted octahedral coordination geometry. The Ni—O and Ni—N bond distances are within normal ranges. The [NiL2] complexes form an extensive network of O—H···O interactions involving the lattice water molecules, giving 2-D networks parallel to the (001) planes (Fig. 2).

Related literature top

For the applications of Schiff-base complexes, see: Kritagawa & Kondo (1998); Zhang et al. (1998); Yaghi et al. (1996).

Experimental top

The complex was synthesized by refluxing HL (0.050 g, 0.2 mmol) and NiCl2.6H2O (0.048 g, 0.2 mmol) in the mixed solution (CH3OH:H2O = 4:1) until all solid was dissolved. The solution was then cooled to room temperature and filtered. Green crystals for X-ray diffraction analysis were obtained by slow evaporation of the filtrate. Elemental analysis calculated: C 47.74, H 5.97, N 4.64 %; found: C 47.69, H 5.51, N 4.58 %.

Refinement top

All H atoms bound to C were placed geometrically with C—H = 0.93 (aromatic H), 0.96 (methyl H) or 0.97 Å (methylene H) and refined as riding with Uiso(H) = 1.2Ueq(C) (aromatic and methylene H) or 1.5Ueq(C) (methyl H). The H atoms of the water molecule were located from difference density maps and refined with distance restraints of d(H···H) = 1.38 (2) Å, d(O—H) = 0.82 (1) Å. The H atoms of the hydroxyl groups were placed geometrically with O—H = 0.82 Å.

Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); 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
[Figure 1] Fig. 1. Molecular structure with displacement ellipsoids drawn at the 30% probability level for non-H atoms.
[Figure 2] Fig. 2. Packing diagram viewed approximately along the c axis, showing the complex network of O—H···O hydrogen bonds (dashed lines).
Bis(6-methoxy-2-{[tris(hydroxymethyl)methyl- κO]iminomethyl}phenolato-κ2N,O1)nickel(II) dihydrate top
Crystal data top
[Ni(C12H16NO5)2]·2H2OF(000) = 1272
Mr = 603.26Dx = 1.506 Mg m−3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 4933 reflections
a = 12.0142 (10) Åθ = 2.0–25.5°
b = 10.9876 (10) ŵ = 0.80 mm−1
c = 20.324 (2) ÅT = 293 K
β = 97.501 (1)°Block, green
V = 2660.0 (4) Å30.44 × 0.29 × 0.20 mm
Z = 4
Data collection top
Bruker APEXII CCD
diffractometer		4933 independent reflections
Radiation source: fine-focus sealed tube4436 reflections with I > 2σ(I)
graphiteRint = 0.043
φ and ω scansθmax = 25.5°, θmin = 2.0°
Absorption correction: multi-scan
(SADABS; Sheldrick, 2003)		h = −14→11
Tmin = 0.721, Tmax = 0.857k = −13→13
13321 measured reflectionsl = −24→21
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.039Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.117H atoms treated by a mixture of independent and constrained refinement
S = 1.00 w = 1/[σ2(Fo2) + (0.069P)2 + 2.387P]
where P = (Fo2 + 2Fc2)/3
4933 reflections(Δ/σ)max = 0.032
376 parametersΔρmax = 0.38 e Å−3
8 restraintsΔρmin = −0.44 e Å−3
Crystal data top
[Ni(C12H16NO5)2]·2H2OV = 2660.0 (4) Å3
Mr = 603.26Z = 4
Monoclinic, P21/cMo Kα radiation
a = 12.0142 (10) ŵ = 0.80 mm−1
b = 10.9876 (10) ÅT = 293 K
c = 20.324 (2) Å0.44 × 0.29 × 0.20 mm
β = 97.501 (1)°
Data collection top
Bruker APEXII CCD
diffractometer		4933 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 2003)		4436 reflections with I > 2σ(I)
Tmin = 0.721, Tmax = 0.857Rint = 0.043
13321 measured reflectionsθmax = 25.5°
Refinement top
R[F2 > 2σ(F2)] = 0.039H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.117Δρmax = 0.38 e Å−3
S = 1.00Δρmin = −0.44 e Å−3
4933 reflectionsAbsolute structure: ?
376 parametersFlack parameter: ?
8 restraintsRogers parameter: ?
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
xyzUiso*/Ueq
C10.9480 (2)0.2452 (2)0.86933 (11)0.0233 (5)
C21.0283 (2)0.2677 (3)0.92480 (12)0.0311 (6)
H21.10230.24330.92420.037*
C30.9989 (3)0.3243 (3)0.97874 (13)0.0386 (7)
H31.05240.33901.01530.046*
C40.8871 (3)0.3610 (3)0.97952 (14)0.0391 (7)
H40.86710.40031.01680.047*
C50.8073 (2)0.3402 (2)0.92655 (13)0.0307 (6)
C60.8335 (2)0.2797 (2)0.86879 (11)0.0228 (5)
C70.6684 (2)0.3019 (2)0.62935 (12)0.0231 (5)
C80.6897 (3)0.3685 (2)0.57276 (13)0.0325 (6)
C90.6097 (3)0.3783 (3)0.51866 (15)0.0468 (8)
H90.62510.42380.48230.056*
C100.5051 (3)0.3210 (3)0.51678 (16)0.0515 (9)
H100.45090.33070.48010.062*
C110.4834 (3)0.2522 (3)0.56833 (15)0.0404 (7)
H110.41430.21360.56680.048*
C120.5639 (2)0.2379 (2)0.62428 (12)0.0269 (5)
C130.8357 (4)0.4634 (4)0.52069 (18)0.0638 (11)
H13A0.83000.39930.48830.096*
H13B0.91280.48720.53120.096*
H13C0.79210.53190.50300.096*
C140.5356 (2)0.1521 (2)0.67266 (13)0.0265 (5)
H140.46210.12380.66790.032*
C150.5631 (2)0.0166 (2)0.76457 (13)0.0264 (5)
C160.6607 (2)−0.0731 (2)0.77949 (14)0.0312 (6)
H16A0.6454−0.12910.81410.037*
H16B0.6694−0.11990.74000.037*
C170.4562 (2)−0.0513 (3)0.73736 (15)0.0344 (6)
H17A0.4381−0.11040.76980.041*
H17B0.39430.00590.72960.041*
C180.5411 (3)0.0770 (3)0.82811 (14)0.0370 (6)
H18A0.52260.01560.85920.044*
H18B0.60830.11900.84780.044*
C190.6632 (3)0.4399 (3)0.97696 (15)0.0488 (8)
H19A0.67550.39081.01630.073*
H19B0.58500.46030.96780.073*
H19C0.70680.51310.98350.073*
C200.9938 (2)0.1930 (2)0.81394 (12)0.0228 (5)
H201.07120.18230.81820.027*
C210.9989 (2)0.1161 (2)0.70684 (12)0.0229 (5)
C220.9245 (2)0.0216 (2)0.66780 (12)0.0260 (5)
H22A0.95020.00800.62510.031*
H22B0.9290−0.05490.69180.031*
C231.0163 (2)0.2240 (2)0.66147 (12)0.0276 (5)
H23A1.06220.19770.62820.033*
H23B0.94410.24900.63860.033*
C241.1143 (2)0.0572 (2)0.72948 (13)0.0282 (5)
H24A1.14280.01930.69190.034*
H24B1.16750.11890.74750.034*
N10.93758 (17)0.16035 (17)0.75960 (9)0.0199 (4)
N20.60221 (17)0.11097 (18)0.72161 (10)0.0228 (4)
Ni10.76754 (2)0.15968 (3)0.742167 (14)0.01963 (12)
O10.4508 (2)0.1618 (2)0.81592 (14)0.0531 (6)
H10.47590.23130.81780.080*
O20.46970 (17)−0.11101 (19)0.67775 (11)0.0418 (5)
H2A0.4079−0.12550.65710.063*
O30.74281 (14)0.30277 (15)0.68125 (8)0.0233 (4)
O40.81045 (15)0.06375 (17)0.65815 (9)0.0301 (4)
O51.06823 (16)0.32512 (17)0.69579 (10)0.0341 (4)
H51.02000.37340.70420.051*
O61.10157 (16)−0.03050 (19)0.77806 (11)0.0399 (5)
H61.1596−0.07020.78590.060*
O70.2701 (2)0.1557 (2)0.87725 (16)0.0584 (7)
O80.6646 (2)0.8964 (2)0.60240 (12)0.0524 (6)
O90.79479 (19)0.4219 (2)0.57859 (10)0.0440 (5)
O100.76155 (15)−0.00657 (17)0.80057 (10)0.0311 (4)
O110.69602 (18)0.3743 (2)0.92284 (10)0.0446 (5)
O120.75320 (14)0.26451 (16)0.82089 (8)0.0258 (4)
H10A0.815 (2)−0.054 (3)0.803 (2)0.080*
H1AA0.690 (3)0.8269 (14)0.603 (2)0.080*
H2AA0.329 (2)0.151 (3)0.862 (2)0.080*
H4AA0.768 (3)0.008 (3)0.645 (2)0.080*
H1BB0.605 (2)0.902 (3)0.618 (2)0.080*
H2BB0.243 (3)0.0900 (16)0.886 (2)0.080*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0281 (12)0.0218 (12)0.0198 (11)−0.0011 (10)0.0026 (9)−0.0003 (9)
C20.0308 (13)0.0363 (15)0.0247 (13)0.0002 (12)−0.0020 (10)0.0005 (11)
C30.0432 (17)0.0480 (18)0.0220 (13)−0.0017 (14)−0.0059 (12)−0.0053 (12)
C40.0487 (18)0.0460 (17)0.0222 (13)0.0024 (14)0.0036 (12)−0.0104 (12)
C50.0367 (15)0.0310 (14)0.0247 (13)0.0056 (11)0.0052 (11)−0.0026 (10)
C60.0300 (13)0.0203 (11)0.0177 (11)−0.0016 (10)0.0022 (9)0.0016 (9)
C70.0293 (13)0.0164 (11)0.0232 (12)0.0003 (10)0.0022 (10)−0.0012 (9)
C80.0461 (16)0.0242 (13)0.0265 (13)−0.0038 (12)0.0026 (11)0.0015 (10)
C90.073 (2)0.0381 (16)0.0257 (14)−0.0042 (16)−0.0061 (14)0.0096 (12)
C100.065 (2)0.0432 (18)0.0374 (17)−0.0052 (16)−0.0254 (16)0.0094 (14)
C110.0407 (16)0.0311 (15)0.0442 (17)−0.0031 (12)−0.0144 (13)0.0020 (12)
C120.0294 (13)0.0217 (12)0.0276 (12)0.0018 (10)−0.0035 (10)−0.0005 (10)
C130.094 (3)0.053 (2)0.052 (2)−0.018 (2)0.040 (2)−0.0003 (17)
C140.0231 (12)0.0206 (12)0.0346 (14)−0.0017 (10)−0.0015 (10)−0.0026 (10)
C150.0262 (12)0.0206 (12)0.0333 (13)−0.0046 (10)0.0068 (10)0.0036 (10)
C160.0318 (14)0.0220 (13)0.0391 (14)−0.0031 (11)0.0022 (11)0.0055 (11)
C170.0268 (13)0.0267 (14)0.0494 (17)−0.0059 (11)0.0037 (12)0.0054 (12)
C180.0429 (16)0.0336 (15)0.0375 (15)−0.0038 (13)0.0170 (12)0.0044 (12)
C190.056 (2)0.057 (2)0.0362 (16)0.0188 (16)0.0167 (14)−0.0120 (15)
C200.0223 (12)0.0202 (11)0.0253 (12)−0.0011 (10)0.0011 (9)0.0006 (9)
C210.0248 (12)0.0220 (12)0.0225 (11)0.0003 (10)0.0056 (9)−0.0032 (9)
C220.0307 (13)0.0203 (12)0.0265 (12)0.0007 (10)0.0022 (10)−0.0055 (10)
C230.0331 (13)0.0269 (13)0.0239 (12)−0.0017 (11)0.0080 (10)−0.0004 (10)
C240.0267 (13)0.0261 (13)0.0322 (13)0.0031 (10)0.0054 (10)−0.0007 (10)
N10.0236 (10)0.0174 (10)0.0190 (10)0.0009 (8)0.0044 (8)0.0006 (7)
N20.0221 (10)0.0186 (10)0.0276 (11)−0.0009 (8)0.0028 (8)−0.0005 (8)
Ni10.02003 (18)0.01864 (18)0.01981 (18)−0.00071 (11)0.00109 (12)−0.00067 (11)
O10.0484 (14)0.0359 (12)0.0817 (18)0.0007 (10)0.0338 (13)−0.0071 (12)
O20.0364 (11)0.0328 (11)0.0528 (13)−0.0080 (9)−0.0074 (9)−0.0070 (10)
O30.0269 (9)0.0198 (8)0.0223 (8)−0.0042 (7)−0.0004 (7)0.0010 (7)
O40.0286 (9)0.0285 (10)0.0319 (10)−0.0018 (8)−0.0014 (7)−0.0101 (8)
O50.0351 (11)0.0263 (10)0.0421 (11)−0.0068 (8)0.0096 (9)−0.0016 (8)
O60.0309 (10)0.0326 (11)0.0560 (13)0.0111 (9)0.0046 (9)0.0139 (9)
O70.0449 (14)0.0510 (15)0.0836 (19)0.0014 (11)0.0248 (13)−0.0003 (13)
O80.0615 (16)0.0469 (14)0.0485 (13)−0.0191 (12)0.0057 (11)−0.0043 (11)
O90.0523 (13)0.0463 (12)0.0351 (11)−0.0156 (10)0.0125 (9)0.0085 (9)
O100.0281 (9)0.0250 (9)0.0390 (10)0.0007 (8)−0.0004 (8)0.0041 (8)
O110.0417 (12)0.0646 (14)0.0275 (10)0.0182 (11)0.0046 (9)−0.0162 (10)
O120.0246 (9)0.0298 (9)0.0222 (8)0.0023 (7)0.0008 (7)−0.0059 (7)
Geometric parameters (Å, °) top
C1—C21.406 (3)C17—H17B0.970
C1—C61.426 (4)C18—O11.427 (4)
C1—C201.435 (3)C18—H18A0.970
C2—C31.347 (4)C18—H18B0.970
C2—H20.930C19—O111.414 (3)
C3—C41.405 (5)C19—H19A0.960
C3—H30.930C19—H19B0.960
C4—C51.364 (4)C19—H19C0.960
C4—H40.930C20—N11.269 (3)
C5—O111.381 (3)C20—H200.930
C5—C61.419 (3)C21—N11.461 (3)
C6—O121.289 (3)C21—C221.524 (3)
C7—O31.290 (3)C21—C231.533 (3)
C7—C81.414 (4)C21—C241.545 (3)
C7—C121.431 (4)C22—O41.435 (3)
C8—C91.366 (4)C22—H22A0.970
C8—O91.384 (4)C22—H22B0.970
C9—C101.402 (5)C23—O51.413 (3)
C9—H90.930C23—H23A0.970
C10—C111.345 (5)C23—H23B0.970
C10—H100.930C24—O61.402 (3)
C11—C121.402 (4)C24—H24A0.970
C11—H110.930C24—H24B0.970
C12—C141.435 (4)N1—Ni12.027 (2)
C13—O91.409 (4)N2—Ni12.047 (2)
C13—H13A0.960Ni1—O121.9971 (17)
C13—H13B0.960Ni1—O31.9993 (17)
C13—H13C0.960Ni1—O42.1266 (18)
C14—N21.275 (3)Ni1—O102.1847 (19)
C14—H140.930O1—H10.820
C15—N21.471 (3)O2—H2A0.820
C15—C181.506 (4)O4—H4AA0.82 (3)
C15—C171.526 (3)O5—H50.820
C15—C161.531 (4)O6—H60.820
C16—O101.432 (3)O7—H2AA0.81 (3)
C16—H16A0.970O7—H2BB0.82 (2)
C16—H16B0.970O8—H1AA0.82 (2)
C17—O21.406 (4)O8—H1BB0.82 (3)
C17—H17A0.970O10—H10A0.82 (3)
C2—C1—C6121.3 (2)O11—C19—H19B109.5
C2—C1—C20114.0 (2)H19A—C19—H19B109.5
C6—C1—C20124.6 (2)O11—C19—H19C109.5
C3—C2—C1120.6 (3)H19A—C19—H19C109.5
C3—C2—H2119.7H19B—C19—H19C109.5
C1—C2—H2119.7N1—C20—C1125.5 (2)
C2—C3—C4119.6 (3)N1—C20—H20117.2
C2—C3—H3120.2C1—C20—H20117.2
C4—C3—H3120.2N1—C21—C22106.9 (2)
C5—C4—C3121.2 (3)N1—C21—C23107.81 (19)
C5—C4—H4119.4C22—C21—C23109.3 (2)
C3—C4—H4119.4N1—C21—C24116.1 (2)
C4—C5—O11125.0 (2)C22—C21—C24108.2 (2)
C4—C5—C6121.5 (3)C23—C21—C24108.4 (2)
O11—C5—C6113.5 (2)O4—C22—C21109.65 (19)
O12—C6—C5117.4 (2)O4—C22—H22A109.7
O12—C6—C1126.7 (2)C21—C22—H22A109.7
C5—C6—C1115.9 (2)O4—C22—H22B109.7
O3—C7—C8118.8 (2)C21—C22—H22B109.7
O3—C7—C12124.8 (2)H22A—C22—H22B108.2
C8—C7—C12116.4 (2)O5—C23—C21113.4 (2)
C9—C8—O9125.0 (3)O5—C23—H23A108.9
C9—C8—C7120.8 (3)C21—C23—H23A108.9
O9—C8—C7114.2 (2)O5—C23—H23B108.9
C8—C9—C10121.3 (3)C21—C23—H23B108.9
C8—C9—H9119.3H23A—C23—H23B107.7
C10—C9—H9119.3O6—C24—C21108.7 (2)
C11—C10—C9119.7 (3)O6—C24—H24A109.9
C11—C10—H10120.2C21—C24—H24A109.9
C9—C10—H10120.2O6—C24—H24B109.9
C10—C11—C12120.8 (3)C21—C24—H24B109.9
C10—C11—H11119.6H24A—C24—H24B108.3
C12—C11—H11119.6C20—N1—C21118.1 (2)
C11—C12—C7120.6 (2)C20—N1—Ni1124.24 (17)
C11—C12—C14115.5 (2)C21—N1—Ni1117.62 (15)
C7—C12—C14123.9 (2)C14—N2—C15119.8 (2)
O9—C13—H13A109.5C14—N2—Ni1124.04 (18)
O9—C13—H13B109.5C15—N2—Ni1116.08 (15)
H13A—C13—H13B109.5O12—Ni1—O391.21 (7)
O9—C13—H13C109.5O12—Ni1—N192.77 (7)
H13A—C13—H13C109.5O3—Ni1—N199.80 (7)
H13B—C13—H13C109.5O12—Ni1—N297.55 (8)
N2—C14—C12126.0 (2)O3—Ni1—N291.00 (7)
N2—C14—H14117.0N1—Ni1—N2164.91 (8)
C12—C14—H14117.0O12—Ni1—O4169.89 (7)
N2—C15—C18107.7 (2)O3—Ni1—O485.67 (7)
N2—C15—C17116.6 (2)N1—Ni1—O478.33 (7)
C18—C15—C17107.0 (2)N2—Ni1—O492.12 (8)
N2—C15—C16106.0 (2)O12—Ni1—O1091.98 (7)
C18—C15—C16109.2 (2)O3—Ni1—O10168.87 (7)
C17—C15—C16110.1 (2)N1—Ni1—O1090.69 (7)
O10—C16—C15109.1 (2)N2—Ni1—O1078.01 (7)
O10—C16—H16A109.9O4—Ni1—O1092.89 (7)
C15—C16—H16A109.9C18—O1—H1109.5
O10—C16—H16B109.9C17—O2—H2A109.5
C15—C16—H16B109.9C7—O3—Ni1122.09 (15)
H16A—C16—H16B108.3C22—O4—Ni1112.16 (13)
O2—C17—C15110.7 (2)C22—O4—H4AA110 (3)
O2—C17—H17A109.5Ni1—O4—H4AA115 (3)
C15—C17—H17A109.5C23—O5—H5109.5
O2—C17—H17B109.5C24—O6—H6109.5
C15—C17—H17B109.5H2AA—O7—H2BB115 (3)
H17A—C17—H17B108.1H1AA—O8—H1BB114 (3)
O1—C18—C15110.7 (2)C8—O9—C13118.7 (3)
O1—C18—H18A109.5C16—O10—Ni1110.53 (14)
C15—C18—H18A109.5C16—O10—H10A109 (3)
O1—C18—H18B109.5Ni1—O10—H10A118 (3)
C15—C18—H18B109.5C5—O11—C19117.5 (2)
H18A—C18—H18B108.1C6—O12—Ni1123.07 (16)
O11—C19—H19A109.5
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.821.852.670 (3)179.
O2—H2A···O11ii0.821.912.666 (3)152.
O2—H2A···O12ii0.822.373.010 (3)135.
O5—H5···O6iii0.821.872.691 (3)174.
O6—H6···O3iv0.821.892.671 (2)159.
O10—H10A···O5iv0.82 (3)1.93 (3)2.751 (3)175 (5)
O8—H1AA···O7i0.82 (2)1.97 (1)2.775 (4)166 (4)
O4—H4AA···O8v0.82 (3)1.88 (4)2.686 (3)170 (4)
O8—H1BB···O2vi0.82 (3)2.16 (3)2.962 (3)167 (4)
O7—H2BB···O9ii0.82 (2)2.06 (1)2.862 (4)168 (4)
O7—H2AA···O10.81 (3)1.84 (3)2.641 (3)169 (4)
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x+1, y−1/2, −z+3/2; (iii) −x+2, y+1/2, −z+3/2; (iv) −x+2, y−1/2, −z+3/2; (v) x, y−1, z; (vi) x, y+1, z.
Table 1
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.821.852.670 (3)179.
O2—H2A···O11ii0.821.912.666 (3)152.
O2—H2A···O12ii0.822.373.010 (3)135.
O5—H5···O6iii0.821.872.691 (3)174.
O6—H6···O3iv0.821.892.671 (2)159.
O10—H10A···O5iv0.82 (3)1.93 (3)2.751 (3)175 (5)
O8—H1AA···O7i0.82 (2)1.97 (1)2.775 (4)166 (4)
O4—H4AA···O8v0.82 (3)1.88 (4)2.686 (3)170 (4)
O8—H1BB···O2vi0.82 (3)2.16 (3)2.962 (3)167 (4)
O7—H2BB···O9ii0.82 (2)2.06 (1)2.862 (4)168 (4)
O7—H2AA···O10.81 (3)1.84 (3)2.641 (3)169 (4)
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x+1, y−1/2, −z+3/2; (iii) −x+2, y+1/2, −z+3/2; (iv) −x+2, y−1/2, −z+3/2; (v) x, y−1, z; (vi) x, y+1, z.
Acknowledgements top

The authors acknowledge financial support from the Science Foundation of Maoming University (grant No. 208033).

references
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