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The title compound, (C8H22N2O)2[Mo8O26]·H2O, (cis-H2L)2[β-Mo8O26]·H2O, where L = (bis­[2-N,N-di­methyl­amino)­eth­yl] ether), was synthesized from bis­[2-(di­methyl­amino)­eth­yl] ether and MoO3 under solvothermal conditions and characterized by multinuclear NMR and single-crystal X-ray diffraction techniques. The structure displays two [oxybis(ethane-1,2-di­yl)]bis­(di­methyl­ammonium), or [cis-H2L]2+, cations, a central [β-Mo8O26]4− anionic cluster consisting of eight distorted MoO6 octa­hedra, and two water mol­ecules in their deuterated form. The central anion lies across an inversion center. The [cis-H2L]2+ cations are hydrogen bonded to the central [β-Mo8O26]4− cluster via bridging water mol­ecules. In the crystal, O—H...O hydrogen bonds link the components into chains along [010]. Weak C—H...O hydrogen bonds link these chains into a three-dimensional network.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S2414314619015360/lh4048sup1.cif
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S2414314619015360/lh4048Isup2.hkl
Contains datablock I

CCDC reference: 1965627

Key indicators

  • Single-crystal X-ray study
  • T = 100 K
  • Mean [sigma](C-C) = 0.009 Å
  • R factor = 0.032
  • wR factor = 0.074
  • Data-to-parameter ratio = 13.6

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full value Low . 0.978 Why? PLAT342_ALERT_3_C Low Bond Precision on C-C Bonds ............... 0.0085 Ang. PLAT911_ALERT_3_C Missing FCF Refl Between Thmin & STh/L= 0.600 80 Report PLAT934_ALERT_3_C Number of (Iobs-Icalc)/Sigma(W) > 10 Outliers .. 1 Check PLAT975_ALERT_2_C Check Calcd Resid. Dens. 1.04A From O4 0.73 eA-3 PLAT975_ALERT_2_C Check Calcd Resid. Dens. 0.94A From O15 0.55 eA-3 PLAT975_ALERT_2_C Check Calcd Resid. Dens. 0.85A From O13 0.52 eA-3 PLAT975_ALERT_2_C Check Calcd Resid. Dens. 0.64A From O1 0.51 eA-3 PLAT978_ALERT_2_C Number C-C Bonds with Positive Residual Density. 0 Info
Alert level G PLAT007_ALERT_5_G Number of Unrefined Donor-H Atoms .............. 4 Report PLAT042_ALERT_1_G Calc. and Reported MoietyFormula Strings Differ Please Check PLAT083_ALERT_2_G SHELXL Second Parameter in WGHT Unusually Large 11.06 Why ? PLAT395_ALERT_2_G Deviating X-O-Y Angle From 120 for O15 104.6 Degree PLAT794_ALERT_5_G Tentative Bond Valency for Mo1 (VI) . 5.91 Info PLAT794_ALERT_5_G Tentative Bond Valency for Mo2 (VI) . 5.76 Info PLAT794_ALERT_5_G Tentative Bond Valency for Mo3 (VI) . 5.90 Info PLAT794_ALERT_5_G Tentative Bond Valency for Mo4 (VI) . 5.83 Info PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 5 Note PLAT933_ALERT_2_G Number of OMIT Records in Embedded .res File ... 5 Note
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 9 ALERT level C = Check. Ensure it is not caused by an omission or oversight 10 ALERT level G = General information/check it is not something unexpected 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 8 ALERT type 2 Indicator that the structure model may be wrong or deficient 4 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 5 ALERT type 5 Informative message, check

Computing details top

Data collection: APEX3 (Bruker, 2017); cell refinement: SAINT (Bruker, 2017); data reduction: SAINT (Bruker, 2017); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2016 (Sheldrick, 2015); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).

[Oxybis(ethane-1,2-diyl)]bis(dimethylammonium) octamolybdate dihydrate top
Crystal data top
(C8H22N2O)2[Mo8O26]·2D2OF(000) = 1496
Mr = 1548.13Dx = 2.526 Mg m3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
a = 10.139 (3) ÅCell parameters from 4105 reflections
b = 11.350 (3) Åθ = 2.2–25.4°
c = 17.815 (5) ŵ = 2.48 mm1
β = 96.773 (3)°T = 100 K
V = 2035.7 (9) Å3Block, colourless
Z = 20.28 × 0.23 × 0.02 mm
Data collection top
Bruker APEXII CCD
diffractometer
2992 reflections with I > 2σ(I)
Detector resolution: 8.258 pixels mm-1Rint = 0.029
φ and ω scansθmax = 25.4°, θmin = 2.1°
Absorption correction: multi-scan
(SADABS; Bruker, 2017)
h = 1012
Tmin = 0.581, Tmax = 0.646k = 913
8296 measured reflectionsl = 2119
3652 independent reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.032H-atom parameters constrained
wR(F2) = 0.074 w = 1/[σ2(Fo2) + (0.0204P)2 + 11.0569P]
where P = (Fo2 + 2Fc2)/3
S = 1.08(Δ/σ)max = 0.001
3652 reflectionsΔρmax = 0.75 e Å3
269 parametersΔρmin = 0.88 e Å3
0 restraints
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Mo40.51222 (5)0.56859 (4)0.59121 (2)0.00664 (12)
Mo30.57308 (5)0.29183 (4)0.58295 (2)0.00758 (12)
Mo20.27674 (5)0.24855 (5)0.49345 (3)0.00926 (13)
Mo10.21926 (5)0.52804 (5)0.50414 (3)0.00963 (13)
O50.6544 (4)0.4504 (3)0.59792 (19)0.0083 (8)
O40.4575 (4)0.1866 (3)0.52022 (19)0.0082 (8)
O10.4160 (4)0.4202 (3)0.53033 (19)0.0081 (8)
O20.3639 (4)0.6471 (3)0.53276 (19)0.0078 (8)
O30.1739 (4)0.3814 (3)0.45750 (19)0.0090 (8)
O150.5610 (4)0.0398 (4)0.4110 (2)0.0102 (9)
D15A0.5380310.0902720.4437950.015*
D15B0.5521870.0285890.4318480.015*
O130.6163 (4)0.6926 (3)0.6051 (2)0.0102 (8)
O70.1035 (4)0.6188 (4)0.4579 (2)0.0138 (9)
O140.6350 (4)0.1851 (4)0.2749 (2)0.0138 (9)
O110.7115 (4)0.2063 (4)0.5948 (2)0.0127 (9)
O90.2025 (4)0.1352 (4)0.4428 (2)0.0161 (9)
O100.5105 (4)0.2820 (4)0.6675 (2)0.0116 (9)
O80.2277 (4)0.2344 (4)0.5810 (2)0.0162 (9)
O120.4551 (4)0.5481 (4)0.6757 (2)0.0117 (9)
O60.1744 (4)0.5114 (4)0.5923 (2)0.0148 (9)
N10.8289 (5)0.1047 (4)0.3826 (2)0.0108 (10)
H10.7313530.0881980.3776280.013*
N20.4038 (5)0.0472 (4)0.2666 (3)0.0120 (11)
H20.4659670.0503700.3144830.014*
C40.5429 (6)0.1940 (6)0.2073 (3)0.0163 (14)
H4A0.5674470.1381380.1685770.020*
H4B0.5435930.2747960.1864600.020*
C60.8473 (6)0.2142 (6)0.3394 (3)0.0159 (13)
H6A0.9427460.2243330.3340540.019*
H6B0.8184490.2827360.3677150.019*
C20.4473 (7)0.0508 (6)0.2199 (3)0.0221 (15)
H2A0.3859250.0576480.1732910.033*
H2B0.4475990.1246280.2483780.033*
H2C0.5369920.0345770.2072000.033*
C50.7685 (6)0.2105 (6)0.2617 (3)0.0185 (14)
H5A0.7731870.2872570.2357030.022*
H5B0.8029650.1483900.2302060.022*
C80.8742 (6)0.1196 (6)0.4648 (3)0.0172 (14)
H8A0.9694810.1374000.4718560.026*
H8B0.8578090.0467100.4917160.026*
H8C0.8251830.1845160.4849420.026*
C30.4072 (6)0.1646 (6)0.2288 (3)0.0153 (13)
H3A0.3803440.2261510.2633470.018*
H3B0.3421070.1648990.1828070.018*
C70.8937 (7)0.0006 (6)0.3518 (4)0.0244 (16)
H7A0.8663960.0051980.2973110.037*
H7B0.8669650.0709640.3768080.037*
H7C0.9903850.0094870.3610600.037*
C10.2683 (6)0.0247 (6)0.2869 (3)0.0209 (15)
H1A0.2057180.0189430.2406800.031*
H1B0.2417660.0895400.3181420.031*
H1C0.2678740.0493430.3151570.031*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Mo40.0060 (3)0.0080 (3)0.0061 (2)0.0005 (2)0.00142 (17)0.00017 (18)
Mo30.0070 (3)0.0078 (3)0.0080 (2)0.0009 (2)0.00073 (18)0.00107 (19)
Mo20.0070 (3)0.0099 (3)0.0112 (2)0.0009 (2)0.00251 (18)0.0000 (2)
Mo10.0070 (3)0.0103 (3)0.0118 (2)0.0009 (2)0.00221 (19)0.0002 (2)
O50.009 (2)0.008 (2)0.0078 (17)0.0009 (16)0.0008 (15)0.0025 (15)
O40.007 (2)0.008 (2)0.0096 (18)0.0003 (16)0.0029 (15)0.0001 (15)
O10.008 (2)0.009 (2)0.0073 (17)0.0017 (16)0.0010 (15)0.0002 (15)
O20.007 (2)0.005 (2)0.0108 (18)0.0014 (16)0.0003 (15)0.0010 (15)
O30.007 (2)0.009 (2)0.0107 (18)0.0000 (16)0.0007 (15)0.0011 (16)
O150.011 (2)0.008 (2)0.0122 (19)0.0018 (18)0.0033 (16)0.0002 (16)
O130.007 (2)0.012 (2)0.0113 (18)0.0006 (17)0.0012 (15)0.0023 (16)
O70.011 (2)0.013 (2)0.018 (2)0.0020 (18)0.0013 (16)0.0032 (18)
O140.009 (2)0.021 (3)0.0116 (19)0.0033 (18)0.0017 (16)0.0065 (17)
O110.009 (2)0.014 (2)0.0151 (19)0.0011 (17)0.0002 (16)0.0001 (17)
O90.010 (2)0.018 (3)0.021 (2)0.0008 (18)0.0049 (17)0.0042 (18)
O100.015 (2)0.012 (2)0.0082 (18)0.0027 (18)0.0037 (16)0.0010 (16)
O80.016 (2)0.020 (3)0.014 (2)0.0002 (19)0.0061 (17)0.0020 (18)
O120.015 (2)0.013 (2)0.0075 (18)0.0002 (18)0.0039 (16)0.0027 (16)
O60.011 (2)0.016 (2)0.018 (2)0.0006 (18)0.0059 (16)0.0006 (18)
N10.008 (3)0.012 (3)0.013 (2)0.001 (2)0.0044 (19)0.000 (2)
N20.013 (3)0.011 (3)0.012 (2)0.002 (2)0.0012 (19)0.001 (2)
C40.019 (3)0.017 (4)0.013 (3)0.002 (3)0.001 (2)0.003 (3)
C60.013 (3)0.017 (4)0.018 (3)0.004 (3)0.003 (2)0.002 (3)
C20.034 (4)0.014 (4)0.017 (3)0.002 (3)0.002 (3)0.001 (3)
C50.016 (3)0.020 (4)0.020 (3)0.005 (3)0.004 (3)0.008 (3)
C80.010 (3)0.028 (4)0.014 (3)0.000 (3)0.001 (2)0.002 (3)
C30.015 (3)0.017 (3)0.013 (3)0.005 (3)0.002 (2)0.003 (2)
C70.034 (4)0.019 (4)0.022 (3)0.003 (3)0.011 (3)0.006 (3)
C10.014 (3)0.033 (4)0.016 (3)0.009 (3)0.003 (3)0.004 (3)
Geometric parameters (Å, º) top
Mo1—O12.340 (4)N1—H11.0000
Mo1—O22.015 (4)N1—C61.485 (7)
Mo1—O31.893 (4)N1—C81.493 (7)
Mo1—O5i2.357 (4)N1—C71.487 (8)
Mo1—O61.696 (4)N2—H21.0000
Mo1—O71.700 (4)N2—C21.486 (8)
Mo2—O12.450 (4)N2—C31.494 (8)
Mo2—O31.901 (4)N2—C11.484 (7)
Mo2—O41.968 (4)C4—H4A0.9900
Mo2—O81.699 (4)C4—H4B0.9900
Mo2—O91.696 (4)C4—C31.509 (8)
Mo2—O13i2.270 (4)C6—H6A0.9900
Mo3—O12.277 (4)C6—H6B0.9900
Mo3—O2i2.334 (4)C6—C51.516 (7)
Mo3—O41.933 (4)C2—H2A0.9800
Mo3—O51.984 (4)C2—H2B0.9800
Mo3—O101.705 (4)C2—H2C0.9800
Mo3—O111.699 (4)C5—H5A0.9900
Mo4—O12.172 (4)C5—H5B0.9900
Mo4—O1i2.368 (4)C8—H8A0.9800
Mo4—O21.942 (4)C8—H8B0.9800
Mo4—O51.963 (4)C8—H8C0.9800
Mo4—O121.692 (4)C3—H3A0.9900
Mo4—O131.759 (4)C3—H3B0.9900
Mo4—Mo33.2081 (11)C7—H7A0.9800
Mo4—Mo13.2177 (9)C7—H7B0.9800
O15—D15A0.8701C7—H7C0.9800
O15—D15B0.8698C1—H1A0.9800
O14—C41.437 (6)C1—H1B0.9800
O14—C51.430 (7)C1—H1C0.9800
Mo3—Mo4—Mo190.539 (19)O6—Mo1—O3103.34 (18)
O5—Mo4—Mo335.86 (11)O6—Mo1—O7105.74 (19)
O5—Mo4—Mo1124.14 (11)Mo4—O5—Mo3108.74 (17)
O5—Mo4—O177.51 (15)Mo4—O5—Mo1i110.13 (16)
O5—Mo4—O1i77.85 (14)Mo3—O5—Mo1i104.21 (16)
O1—Mo4—Mo345.18 (10)Mo3—O4—Mo2113.77 (19)
O1i—Mo4—Mo385.93 (9)Mo4—O1—Mo4i104.28 (15)
O1—Mo4—Mo146.64 (10)Mo4—O1—Mo392.26 (13)
O1i—Mo4—Mo186.14 (9)Mo4—O1—Mo2164.06 (18)
O1—Mo4—O1i75.72 (15)Mo4i—O1—Mo291.55 (12)
O2—Mo4—Mo3124.45 (11)Mo4—O1—Mo190.93 (14)
O2—Mo4—Mo136.36 (11)Mo3—O1—Mo4i97.77 (14)
O2—Mo4—O5149.67 (15)Mo3—O1—Mo287.39 (13)
O2—Mo4—O1i77.70 (14)Mo3—O1—Mo1162.78 (18)
O2—Mo4—O179.29 (15)Mo1—O1—Mo4i97.84 (13)
O13—Mo4—Mo3132.42 (13)Mo1—O1—Mo284.95 (12)
O13—Mo4—Mo1133.35 (12)Mo4—O2—Mo3i109.56 (17)
O13—Mo4—O596.57 (17)Mo4—O2—Mo1108.81 (18)
O13—Mo4—O1156.57 (16)Mo1—O2—Mo3i104.03 (14)
O13—Mo4—O1i80.88 (15)Mo1—O3—Mo2117.03 (18)
O13—Mo4—O297.00 (16)D15A—O15—D15B104.5
O12—Mo4—Mo389.67 (14)Mo4—O13—Mo2i117.40 (18)
O12—Mo4—Mo190.91 (13)C5—O14—C4112.4 (4)
O12—Mo4—O5100.26 (17)C6—N1—H1107.1
O12—Mo4—O199.04 (17)C6—N1—C8111.7 (5)
O12—Mo4—O1i174.68 (17)C6—N1—C7112.7 (5)
O12—Mo4—O2102.45 (17)C8—N1—H1107.1
O12—Mo4—O13104.33 (18)C7—N1—H1107.1
O5—Mo3—Mo435.40 (11)C7—N1—C8110.7 (5)
O5—Mo3—O174.60 (14)C2—N2—H2107.8
O5—Mo3—O2i72.35 (14)C2—N2—C3113.0 (5)
O4—Mo3—Mo4121.63 (11)C3—N2—H2107.8
O4—Mo3—O5148.38 (15)C1—N2—H2107.8
O4—Mo3—O179.08 (14)C1—N2—C2110.6 (5)
O4—Mo3—O2i83.29 (14)C1—N2—C3109.5 (5)
O1—Mo3—Mo442.56 (9)O14—C4—H4A110.3
O1—Mo3—O2i72.39 (13)O14—C4—H4B110.3
O2i—Mo3—Mo479.86 (9)O14—C4—C3107.0 (4)
O11—Mo3—Mo4135.57 (14)H4A—C4—H4B108.6
O11—Mo3—O5100.21 (17)C3—C4—H4A110.3
O11—Mo3—O498.89 (17)C3—C4—H4B110.3
O11—Mo3—O1160.74 (16)N1—C6—H6A109.3
O11—Mo3—O2i88.35 (16)N1—C6—H6B109.3
O11—Mo3—O10103.94 (18)N1—C6—C5111.4 (5)
O10—Mo3—Mo485.97 (14)H6A—C6—H6B108.0
O10—Mo3—O597.61 (17)C5—C6—H6A109.3
O10—Mo3—O4101.94 (17)C5—C6—H6B109.3
O10—Mo3—O195.18 (16)N2—C2—H2A109.5
O10—Mo3—O2i165.54 (17)N2—C2—H2B109.5
O4—Mo2—O174.23 (14)N2—C2—H2C109.5
O4—Mo2—O13i77.07 (14)H2A—C2—H2B109.5
O3—Mo2—O4145.37 (16)H2A—C2—H2C109.5
O3—Mo2—O174.65 (14)H2B—C2—H2C109.5
O3—Mo2—O13i78.41 (15)O14—C5—C6105.2 (5)
O13i—Mo2—O170.16 (13)O14—C5—H5A110.7
O9—Mo2—O4101.54 (17)O14—C5—H5B110.7
O9—Mo2—O1162.10 (16)C6—C5—H5A110.7
O9—Mo2—O3103.37 (18)C6—C5—H5B110.7
O9—Mo2—O13i91.97 (17)H5A—C5—H5B108.8
O9—Mo2—O8104.9 (2)N1—C8—H8A109.5
O8—Mo2—O496.25 (17)N1—C8—H8B109.5
O8—Mo2—O192.90 (17)N1—C8—H8C109.5
O8—Mo2—O3100.13 (18)H8A—C8—H8B109.5
O8—Mo2—O13i162.85 (17)H8A—C8—H8C109.5
O5i—Mo1—Mo478.60 (9)H8B—C8—H8C109.5
O1—Mo1—Mo442.44 (9)N2—C3—C4112.4 (5)
O1—Mo1—O5i71.35 (13)N2—C3—H3A109.1
O2—Mo1—Mo434.83 (10)N2—C3—H3B109.1
O2—Mo1—O5i71.34 (14)C4—C3—H3A109.1
O2—Mo1—O173.89 (14)C4—C3—H3B109.1
O3—Mo1—Mo4120.00 (11)H3A—C3—H3B107.9
O3—Mo1—O5i83.03 (15)N1—C7—H7A109.5
O3—Mo1—O177.57 (14)N1—C7—H7B109.5
O3—Mo1—O2146.37 (16)N1—C7—H7C109.5
O7—Mo1—Mo4133.80 (14)H7A—C7—H7B109.5
O7—Mo1—O5i88.28 (16)H7A—C7—H7C109.5
O7—Mo1—O1159.59 (16)H7B—C7—H7C109.5
O7—Mo1—O299.00 (17)N2—C1—H1A109.5
O7—Mo1—O3101.67 (17)N2—C1—H1B109.5
O6—Mo1—Mo484.40 (13)N2—C1—H1C109.5
O6—Mo1—O5i162.77 (16)H1A—C1—H1B109.5
O6—Mo1—O194.14 (16)H1A—C1—H1C109.5
O6—Mo1—O296.14 (17)H1B—C1—H1C109.5
Symmetry code: (i) x+1, y+1, z+1.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1—H1···O141.002.262.737 (6)108
N1—H1···O151.001.972.916 (7)157
N2—H2···O141.002.462.808 (7)100
N2—H2···O151.001.872.863 (6)170
O15—D15A···O40.871.992.854 (5)170
O15—D15B···O4ii0.871.992.863 (6)177
C1—H1A···O5iii0.982.563.440 (6)149
C1—H1B···O90.982.363.189 (7)142
C1—H1C···O11ii0.982.393.355 (8)168
C2—H2A···O3iv0.982.443.343 (7)153
C2—H2B···O10ii0.982.343.300 (8)167
C3—H3A···O13i0.992.523.407 (7)150
C3—H3B···O11iii0.992.423.266 (7)143
C4—H4A···O6v0.992.503.472 (8)167
C6—H6B···O6i0.992.443.360 (8)154
C7—H7A···O12v0.982.493.316 (8)142
C7—H7B···O8ii0.982.263.227 (8)170
C8—H8A···O9vi0.982.483.402 (7)157
C8—H8B···O9ii0.982.483.461 (8)176
C8—H8C···O110.982.403.155 (7)134
C8—H8C···O7i0.982.523.270 (8)133
Symmetry codes: (i) x+1, y+1, z+1; (ii) x+1, y, z+1; (iii) x1/2, y+1/2, z1/2; (iv) x+1/2, y1/2, z+1/2; (v) x+1/2, y+1/2, z1/2; (vi) x+1, y, z.
Selected bond lengths (Å) top
Mo-O(Å)Mo-O(Å)
Mo1-O12.340 (4)Mo3-O12.277 (4)
Mo1-O22.015 (4)Mo3-O2#12.334 (4)
Mo1-O31.893 (4)Mo3-O41.933 (4)
Mo1-O5#12.357 (4)Mo3-O51.984 (4)
Mo1-O61.696 (4)Mo3-O101.705 (4)
Mo1-O71.700 (4)Mo3-O111.699 (4)
Mo2-O12.450 (4)Mo4-O12.172 (4)
Mo2-O31.901 (4)Mo4-O1#12.368 (4)
Mo2-O41.968 (4)Mo4-O21.942 (4)
Mo2-O81.699 (4)Mo4-O51.963 (4)
Mo2-O91.696 (4)Mo4-O121.692 (4)
Mo2-O13#12.270 (4)Mo4-O131.759 (4)
Symmetry transformations used to generate equivalent atoms: #1 -x+1,-y+1,-z+1

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