organic compounds
Trehalose dihydrate from Tremella fuciformis
aThe Key Laboratory of Medicinal and Edible Plants Resources Development of, Sichuan Education Commission, Chengdu University, Chengdu 610106, People's Republic of China
*Correspondence e-mail: fzchen7200@163.com
The title compound, C12H22O11·2H2O {systematic name: 6,6′-oxybis[2-(hydroxymethyl)-3,4,5,6-tetrahydro-2H-pyran-3,4,5-triol] dihydrate}, is a disaccharide, which was isolated from Tremella fuciformis. The molecule contains two six-membered rings, both of which adopt a chair conformation. Extensive O—H⋯O hydrogen bonds occur in the crystal structure.
Related literature
For the structure of the title compound established from the NMR and MS data, see: Qing & Liu (2012).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536812031947/xu5574sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812031947/xu5574Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812031947/xu5574Isup3.cml
Air-dried and powdered of Tremella fuciformis (5 kg) was extract with ethanol. The crude extract obtained after evaporation of the solvent was subjected to conventional purification procedures and resulting in the isolation of trehalose. The crystals suitable for X-ray structure analysis was obtained by slow evaporation from the solution of hydrous ethanol at room temperature.
Hydroxyl H atoms were located in a difference Fourier map and refined isotropically. Other H atoms were located geometrically with C—H = 0.97–0.98 Å, and refined using a riding model with Uiso(H) = 1.2Ueq(C). The
has not been determined as no significant anomalous scatterings.The title compound, trehalose, was previously isolated from Lepista multiformis, and its structure was established from the NMR and MS data (Qing & Liu, 2012). In our recent investigation, it was isolation from the Tremella fuciformis collected in the Tongjiang county, Sichuan Province of China in September, 2011 for the first time, and its
was determined.The molecular structure of the title compound is shown in Fig. 1. The boat conformations six-membered ringsA (C1/C2/C3/C4/C5/O) and B (C7/C8/C9/C10/C11/O) link with the mid-poit of the C—O—C bond.
The lattice water molecule link with the organic molecule via classic O—H···O hydrogen is present in the
(Table 1).The intermolecular hydrogen bonds may be effective in the stabilization of the structure.
For the structure of the title compound established from the NMR and MS data, see: Qing & Liu (2012).
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell
CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound with 30% probability displacement ellipsoids. | |
Fig. 2. Molecular packing of the title compound. |
C12H22O11·2H2O | Dx = 1.510 Mg m−3 |
Mr = 378.33 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, P212121 | Cell parameters from 1713 reflections |
a = 7.6012 (3) Å | θ = 2.9–28.7° |
b = 12.2380 (4) Å | µ = 0.14 mm−1 |
c = 17.8839 (6) Å | T = 293 K |
V = 1663.64 (9) Å3 | Block, colorless |
Z = 4 | 0.40 × 0.40 × 0.35 mm |
F(000) = 808 |
Oxford Diffraction Xcalibur Eos diffractometer | 1492 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.025 |
Graphite monochromator | θmax = 25.0°, θmin = 2.9° |
Detector resolution: 16.08 pixels mm-1 | h = −4→9 |
ω scans | k = −7→14 |
4079 measured reflections | l = −21→19 |
1698 independent 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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.074 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0383P)2] where P = (Fo2 + 2Fc2)/3 |
1698 reflections | (Δ/σ)max = 0.002 |
274 parameters | Δρmax = 0.16 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C12H22O11·2H2O | V = 1663.64 (9) Å3 |
Mr = 378.33 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 7.6012 (3) Å | µ = 0.14 mm−1 |
b = 12.2380 (4) Å | T = 293 K |
c = 17.8839 (6) Å | 0.40 × 0.40 × 0.35 mm |
Oxford Diffraction Xcalibur Eos diffractometer | 1492 reflections with I > 2σ(I) |
4079 measured reflections | Rint = 0.025 |
1698 independent reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.074 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.16 e Å−3 |
1698 reflections | Δρmin = −0.19 e Å−3 |
274 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
O1 | 0.4981 (3) | 0.04792 (14) | 0.21413 (9) | 0.0228 (4) | |
O2 | 0.9359 (3) | 0.12683 (19) | 0.14721 (11) | 0.0313 (5) | |
O3 | 0.8041 (3) | 0.32880 (18) | 0.21134 (12) | 0.0350 (6) | |
O4 | 0.4253 (3) | 0.34117 (18) | 0.21507 (13) | 0.0350 (5) | |
O5 | 0.3163 (3) | 0.14840 (19) | 0.34554 (10) | 0.0332 (5) | |
O6 | 0.6033 (3) | 0.07053 (14) | 0.09141 (9) | 0.0225 (4) | |
O7 | 0.6186 (3) | −0.10804 (14) | 0.04493 (10) | 0.0237 (5) | |
O8 | 0.3693 (3) | 0.13076 (18) | −0.01895 (12) | 0.0323 (5) | |
O9 | 0.6012 (3) | 0.0916 (2) | −0.14203 (12) | 0.0371 (6) | |
O10 | 0.9303 (3) | −0.01309 (19) | −0.09912 (13) | 0.0337 (5) | |
O11 | 0.9290 (3) | −0.23738 (18) | 0.07721 (11) | 0.0326 (5) | |
O12 | 1.0200 (4) | 0.1657 (2) | −0.00091 (14) | 0.0356 (6) | |
O13 | 1.0982 (4) | −0.0717 (2) | 0.15388 (17) | 0.0503 (7) | |
C1 | 0.6474 (4) | 0.0457 (2) | 0.16644 (14) | 0.0227 (6) | |
H1 | 0.7024 | −0.0267 | 0.1687 | 0.027* | |
C2 | 0.7790 (4) | 0.1315 (2) | 0.19079 (14) | 0.0242 (7) | |
H2A | 0.8093 | 0.1189 | 0.2433 | 0.029* | |
C3 | 0.6952 (4) | 0.2434 (2) | 0.18370 (14) | 0.0235 (6) | |
H3A | 0.6670 | 0.2575 | 0.1311 | 0.028* | |
C4 | 0.5269 (4) | 0.2458 (2) | 0.22963 (14) | 0.0232 (6) | |
H4A | 0.5581 | 0.2447 | 0.2828 | 0.028* | |
C5 | 0.4050 (4) | 0.1502 (2) | 0.21362 (14) | 0.0211 (6) | |
H5A | 0.3528 | 0.1606 | 0.1640 | 0.025* | |
C6 | 0.2581 (4) | 0.1401 (3) | 0.27022 (14) | 0.0273 (7) | |
H6A | 0.1720 | 0.1970 | 0.2608 | 0.033* | |
H6B | 0.2002 | 0.0702 | 0.2634 | 0.033* | |
C7 | 0.5152 (4) | −0.0136 (2) | 0.05112 (14) | 0.0230 (6) | |
H7 | 0.4050 | −0.0317 | 0.0767 | 0.028* | |
C8 | 0.4733 (4) | 0.0350 (2) | −0.02570 (15) | 0.0243 (6) | |
H8A | 0.4056 | −0.0192 | −0.0540 | 0.029* | |
C9 | 0.6428 (4) | 0.0571 (2) | −0.06789 (13) | 0.0231 (6) | |
H9A | 0.7053 | 0.1166 | −0.0427 | 0.028* | |
C10 | 0.7610 (4) | −0.0422 (2) | −0.06912 (13) | 0.0236 (7) | |
H10A | 0.7078 | −0.0974 | −0.1017 | 0.028* | |
C11 | 0.7849 (4) | −0.0914 (2) | 0.00861 (14) | 0.0223 (6) | |
H11A | 0.8562 | −0.0415 | 0.0390 | 0.027* | |
C12 | 0.8745 (4) | −0.2006 (2) | 0.00551 (15) | 0.0291 (7) | |
H12A | 0.7945 | −0.2538 | −0.0159 | 0.035* | |
H12B | 0.9764 | −0.1956 | −0.0270 | 0.035* | |
H2 | 0.986 (6) | 0.068 (4) | 0.156 (2) | 0.077 (15)* | |
H3 | 0.881 (6) | 0.333 (3) | 0.184 (2) | 0.050 (13)* | |
H4 | 0.479 (5) | 0.393 (3) | 0.2228 (18) | 0.041 (11)* | |
H5 | 0.396 (5) | 0.099 (3) | 0.3545 (19) | 0.053 (12)* | |
H8 | 0.431 (6) | 0.183 (3) | −0.007 (2) | 0.064 (14)* | |
H9 | 0.685 (5) | 0.113 (3) | −0.1589 (19) | 0.037 (11)* | |
H10 | 0.959 (7) | 0.037 (4) | −0.078 (2) | 0.075 (18)* | |
H11 | 0.852 (5) | −0.267 (3) | 0.0975 (17) | 0.039 (11)* | |
H12C | 0.987 (6) | 0.151 (3) | 0.046 (2) | 0.068 (13)* | |
H12D | 1.114 (6) | 0.156 (4) | −0.001 (2) | 0.057 (15)* | |
H13A | 1.137 (7) | −0.094 (4) | 0.191 (3) | 0.085 (18)* | |
H13B | 1.045 (7) | −0.125 (4) | 0.130 (3) | 0.090 (17)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0257 (11) | 0.0192 (9) | 0.0235 (9) | 0.0023 (9) | 0.0062 (9) | −0.0001 (8) |
O2 | 0.0236 (12) | 0.0371 (13) | 0.0333 (11) | 0.0024 (11) | 0.0050 (9) | 0.0025 (10) |
O3 | 0.0360 (13) | 0.0339 (13) | 0.0353 (11) | −0.0152 (12) | 0.0101 (11) | −0.0112 (11) |
O4 | 0.0318 (13) | 0.0201 (11) | 0.0531 (13) | 0.0038 (11) | −0.0005 (11) | −0.0016 (11) |
O5 | 0.0345 (13) | 0.0438 (13) | 0.0214 (9) | 0.0166 (12) | 0.0034 (9) | −0.0013 (10) |
O6 | 0.0283 (11) | 0.0208 (9) | 0.0185 (8) | −0.0012 (9) | 0.0009 (8) | −0.0017 (8) |
O7 | 0.0253 (11) | 0.0182 (9) | 0.0277 (9) | −0.0007 (9) | 0.0066 (8) | −0.0012 (8) |
O8 | 0.0194 (11) | 0.0305 (12) | 0.0471 (13) | 0.0028 (10) | −0.0023 (10) | −0.0001 (10) |
O9 | 0.0301 (14) | 0.0540 (15) | 0.0272 (12) | 0.0088 (13) | 0.0008 (10) | 0.0146 (10) |
O10 | 0.0305 (13) | 0.0363 (13) | 0.0344 (12) | 0.0063 (12) | 0.0136 (10) | 0.0067 (11) |
O11 | 0.0327 (13) | 0.0334 (12) | 0.0315 (12) | 0.0010 (11) | 0.0023 (10) | 0.0125 (10) |
O12 | 0.0253 (14) | 0.0403 (13) | 0.0411 (14) | −0.0014 (13) | 0.0041 (11) | 0.0050 (10) |
O13 | 0.0624 (19) | 0.0409 (14) | 0.0477 (15) | 0.0051 (15) | −0.0195 (14) | 0.0037 (13) |
C1 | 0.0278 (17) | 0.0202 (14) | 0.0201 (13) | 0.0063 (13) | 0.0058 (12) | 0.0011 (11) |
C2 | 0.0218 (16) | 0.0303 (16) | 0.0205 (12) | −0.0001 (14) | −0.0005 (12) | 0.0012 (12) |
C3 | 0.0276 (16) | 0.0224 (14) | 0.0204 (12) | −0.0058 (14) | 0.0000 (12) | −0.0018 (12) |
C4 | 0.0255 (16) | 0.0222 (14) | 0.0217 (13) | 0.0015 (14) | 0.0009 (12) | −0.0020 (11) |
C5 | 0.0222 (15) | 0.0218 (14) | 0.0192 (12) | 0.0016 (13) | −0.0010 (12) | −0.0040 (12) |
C6 | 0.0247 (16) | 0.0309 (16) | 0.0264 (13) | 0.0013 (14) | 0.0003 (12) | −0.0041 (13) |
C7 | 0.0190 (15) | 0.0216 (13) | 0.0283 (14) | −0.0043 (14) | 0.0063 (12) | −0.0018 (11) |
C8 | 0.0197 (15) | 0.0245 (14) | 0.0286 (14) | 0.0018 (13) | −0.0010 (13) | −0.0037 (12) |
C9 | 0.0243 (16) | 0.0255 (14) | 0.0195 (13) | −0.0001 (14) | −0.0014 (12) | 0.0004 (12) |
C10 | 0.0242 (17) | 0.0258 (15) | 0.0207 (13) | −0.0007 (13) | 0.0014 (12) | −0.0009 (12) |
C11 | 0.0217 (14) | 0.0229 (14) | 0.0223 (13) | −0.0013 (13) | 0.0037 (12) | −0.0020 (11) |
C12 | 0.0327 (18) | 0.0267 (15) | 0.0281 (14) | 0.0028 (14) | 0.0039 (14) | 0.0025 (12) |
O1—C1 | 1.420 (3) | O13—H13B | 0.88 (5) |
O1—C5 | 1.438 (3) | C1—C2 | 1.514 (4) |
O2—C2 | 1.426 (3) | C1—H1 | 0.9800 |
O2—H2 | 0.83 (4) | C2—C3 | 1.515 (4) |
O3—C3 | 1.422 (4) | C2—H2A | 0.9800 |
O3—H3 | 0.76 (4) | C3—C4 | 1.520 (4) |
O4—C4 | 1.423 (3) | C3—H3A | 0.9800 |
O4—H4 | 0.77 (4) | C4—C5 | 1.520 (4) |
O5—C6 | 1.421 (3) | C4—H4A | 0.9800 |
O5—H5 | 0.87 (4) | C5—C6 | 1.512 (4) |
O6—C1 | 1.416 (3) | C5—H5A | 0.9800 |
O6—C7 | 1.424 (3) | C6—H6A | 0.9700 |
O7—C7 | 1.403 (3) | C6—H6B | 0.9700 |
O7—C11 | 1.436 (3) | C7—C8 | 1.530 (4) |
O8—C8 | 1.419 (3) | C7—H7 | 0.9800 |
O8—H8 | 0.83 (4) | C8—C9 | 1.517 (4) |
O9—C9 | 1.427 (3) | C8—H8A | 0.9800 |
O9—H9 | 0.75 (4) | C9—C10 | 1.511 (4) |
O10—C10 | 1.439 (4) | C9—H9A | 0.9800 |
O10—H10 | 0.76 (4) | C10—C11 | 1.526 (4) |
O11—C12 | 1.421 (3) | C10—H10A | 0.9800 |
O11—H11 | 0.78 (3) | C11—C12 | 1.501 (4) |
O12—H12C | 0.90 (4) | C11—H11A | 0.9800 |
O12—H12D | 0.72 (4) | C12—H12A | 0.9700 |
O13—H13A | 0.78 (5) | C12—H12B | 0.9700 |
C1—O1—C5 | 113.98 (19) | O5—C6—C5 | 113.5 (2) |
C2—O2—H2 | 109 (3) | O5—C6—H6A | 108.9 |
C3—O3—H3 | 106 (3) | C5—C6—H6A | 108.9 |
C4—O4—H4 | 111 (3) | O5—C6—H6B | 108.9 |
C6—O5—H5 | 110 (2) | C5—C6—H6B | 108.9 |
C1—O6—C7 | 115.8 (2) | H6A—C6—H6B | 107.7 |
C7—O7—C11 | 114.3 (2) | O7—C7—O6 | 111.8 (2) |
C8—O8—H8 | 111 (3) | O7—C7—C8 | 111.4 (2) |
C9—O9—H9 | 107 (3) | O6—C7—C8 | 105.8 (2) |
C10—O10—H10 | 106 (4) | O7—C7—H7 | 109.2 |
C12—O11—H11 | 111 (2) | O6—C7—H7 | 109.2 |
H12C—O12—H12D | 104 (4) | C8—C7—H7 | 109.2 |
H13A—O13—H13B | 109 (4) | O8—C8—C9 | 111.6 (2) |
O6—C1—O1 | 112.1 (2) | O8—C8—C7 | 111.1 (2) |
O6—C1—C2 | 106.3 (2) | C9—C8—C7 | 109.8 (2) |
O1—C1—C2 | 110.0 (2) | O8—C8—H8A | 108.1 |
O6—C1—H1 | 109.5 | C9—C8—H8A | 108.1 |
O1—C1—H1 | 109.5 | C7—C8—H8A | 108.1 |
C2—C1—H1 | 109.5 | O9—C9—C10 | 110.9 (2) |
O2—C2—C1 | 111.6 (2) | O9—C9—C8 | 109.1 (2) |
O2—C2—C3 | 110.0 (2) | C10—C9—C8 | 111.6 (2) |
C1—C2—C3 | 108.9 (2) | O9—C9—H9A | 108.4 |
O2—C2—H2A | 108.8 | C10—C9—H9A | 108.4 |
C1—C2—H2A | 108.8 | C8—C9—H9A | 108.4 |
C3—C2—H2A | 108.8 | O10—C10—C9 | 109.8 (2) |
O3—C3—C2 | 113.0 (2) | O10—C10—C11 | 109.3 (2) |
O3—C3—C4 | 106.7 (2) | C9—C10—C11 | 112.0 (2) |
C2—C3—C4 | 109.0 (2) | O10—C10—H10A | 108.5 |
O3—C3—H3A | 109.3 | C9—C10—H10A | 108.5 |
C2—C3—H3A | 109.3 | C11—C10—H10A | 108.5 |
C4—C3—H3A | 109.3 | O7—C11—C12 | 106.8 (2) |
O4—C4—C5 | 105.4 (2) | O7—C11—C10 | 111.3 (2) |
O4—C4—C3 | 111.9 (2) | C12—C11—C10 | 111.8 (2) |
C5—C4—C3 | 113.3 (2) | O7—C11—H11A | 108.9 |
O4—C4—H4A | 108.7 | C12—C11—H11A | 108.9 |
C5—C4—H4A | 108.7 | C10—C11—H11A | 108.9 |
C3—C4—H4A | 108.7 | O11—C12—C11 | 112.4 (2) |
O1—C5—C6 | 106.7 (2) | O11—C12—H12A | 109.1 |
O1—C5—C4 | 111.6 (2) | C11—C12—H12A | 109.1 |
C6—C5—C4 | 112.8 (2) | O11—C12—H12B | 109.1 |
O1—C5—H5A | 108.5 | C11—C12—H12B | 109.1 |
C6—C5—H5A | 108.5 | H12A—C12—H12B | 107.9 |
C4—C5—H5A | 108.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O13 | 0.83 (5) | 1.91 (5) | 2.727 (3) | 168 (4) |
O3—H3···O9i | 0.76 (4) | 2.05 (4) | 2.754 (3) | 153 (4) |
O4—H4···O1ii | 0.77 (4) | 2.21 (4) | 2.889 (3) | 147 (3) |
O5—H5···O10iii | 0.87 (4) | 1.88 (4) | 2.726 (3) | 163 (3) |
O8—H8···O12iv | 0.82 (4) | 1.98 (4) | 2.765 (3) | 161 (4) |
O9—H9···O4i | 0.75 (4) | 2.16 (4) | 2.907 (3) | 174 (4) |
O10—H10···O12 | 0.75 (5) | 2.14 (4) | 2.887 (3) | 170 (5) |
O11—H11···O5v | 0.78 (4) | 1.94 (4) | 2.709 (3) | 173 (4) |
O12—H12C···O2 | 0.89 (4) | 1.87 (4) | 2.766 (3) | 175 (3) |
O12—H12D···O8vi | 0.72 (5) | 1.99 (5) | 2.709 (4) | 171 (4) |
O13—H13A···O3vii | 0.78 (5) | 2.04 (5) | 2.801 (4) | 169 (6) |
O13—H13B···O11 | 0.88 (5) | 1.89 (5) | 2.765 (3) | 179 (6) |
Symmetry codes: (i) x+1/2, −y+1/2, −z; (ii) −x+1, y+1/2, −z+1/2; (iii) −x+3/2, −y, z+1/2; (iv) x−1/2, −y+1/2, −z; (v) −x+1, y−1/2, −z+1/2; (vi) x+1, y, z; (vii) −x+2, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C12H22O11·2H2O |
Mr | 378.33 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 293 |
a, b, c (Å) | 7.6012 (3), 12.2380 (4), 17.8839 (6) |
V (Å3) | 1663.64 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.14 |
Crystal size (mm) | 0.40 × 0.40 × 0.35 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Eos |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4079, 1698, 1492 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.074, 1.05 |
No. of reflections | 1698 |
No. of parameters | 274 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.16, −0.19 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2009), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O13 | 0.83 (5) | 1.91 (5) | 2.727 (3) | 168 (4) |
O3—H3···O9i | 0.76 (4) | 2.05 (4) | 2.754 (3) | 153 (4) |
O4—H4···O1ii | 0.77 (4) | 2.21 (4) | 2.889 (3) | 147 (3) |
O5—H5···O10iii | 0.87 (4) | 1.88 (4) | 2.726 (3) | 163 (3) |
O8—H8···O12iv | 0.82 (4) | 1.98 (4) | 2.765 (3) | 161 (4) |
O9—H9···O4i | 0.75 (4) | 2.16 (4) | 2.907 (3) | 174 (4) |
O10—H10···O12 | 0.75 (5) | 2.14 (4) | 2.887 (3) | 170 (5) |
O11—H11···O5v | 0.78 (4) | 1.94 (4) | 2.709 (3) | 173 (4) |
O12—H12C···O2 | 0.89 (4) | 1.87 (4) | 2.766 (3) | 175 (3) |
O12—H12D···O8vi | 0.72 (5) | 1.99 (5) | 2.709 (4) | 171 (4) |
O13—H13A···O3vii | 0.78 (5) | 2.04 (5) | 2.801 (4) | 169 (6) |
O13—H13B···O11 | 0.88 (5) | 1.89 (5) | 2.765 (3) | 179 (6) |
Symmetry codes: (i) x+1/2, −y+1/2, −z; (ii) −x+1, y+1/2, −z+1/2; (iii) −x+3/2, −y, z+1/2; (iv) x−1/2, −y+1/2, −z; (v) −x+1, y−1/2, −z+1/2; (vi) x+1, y, z; (vii) −x+2, y−1/2, −z+1/2. |
Acknowledgements
This project was supported by the Scientic Research Fund of Chengdu University and the scientific special fund of Sichuan Traditional Chinese Medicine Administration, China.
References
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Qing, X.-D. & Liu, J.-K. (2012). J. Yunnan Univ. 34, 224–226. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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The title compound, trehalose, was previously isolated from Lepista multiformis, and its structure was established from the NMR and MS data (Qing & Liu, 2012). In our recent investigation, it was isolation from the Tremella fuciformis collected in the Tongjiang county, Sichuan Province of China in September, 2011 for the first time, and its crystal structure was determined.
The molecular structure of the title compound is shown in Fig. 1. The boat conformations six-membered ringsA (C1/C2/C3/C4/C5/O) and B (C7/C8/C9/C10/C11/O) link with the mid-poit of the C—O—C bond.
The lattice water molecule link with the organic molecule via classic O—H···O hydrogen is present in the crystal structure (Table 1).
The intermolecular hydrogen bonds may be effective in the stabilization of the structure.