Download citation
Download citation
link to html
The title compound, [Cr(urea)6](Cr2O7)Br·H2O, is isotypic with the corresponding chloride salt and consists of discrete [Cr(urea)6]3+ cations, staggered Cr2O74− and Br anions and water solvent mol­ecules that are held together by an intricate three-dimensional network of hydrogen-bonding inter­actions.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S2056989015019258/wm5225sup1.cif
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S2056989015019258/wm5225Isup2.hkl
Contains datablock I

CCDC reference: 1430688

Key indicators

  • Single-crystal synchrotron study
  • T = 243 K
  • Mean [sigma](N-C) = 0.002 Å
  • R factor = 0.031
  • wR factor = 0.091
  • Data-to-parameter ratio = 22.1

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT243_ALERT_4_C High 'Solvent' Ueq as Compared to Neighbors of O7B Check PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors of Cr1B Check PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors of Cr2B Check PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 9 Report PLAT913_ALERT_3_C Missing # of Very Strong Reflections in FCF .... 4 Note PLAT975_ALERT_2_C Check Calcd Residual Density 1.03A From O1W 0.41 eA-3
Alert level G ABSMU01_ALERT_1_G Calculation of _exptl_absorpt_correction_mu not performed for this radiation type. PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 3 Note PLAT007_ALERT_5_G Number of Unrefined Donor-H Atoms .............. 24 Report PLAT042_ALERT_1_G Calc. and Reported MoietyFormula Strings Differ Please Check PLAT172_ALERT_4_G The CIF-Embedded .res File Contains DFIX Records 1 Report PLAT173_ALERT_4_G The CIF-Embedded .res File Contains DANG Records 1 Report PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels .......... 20 Note PLAT860_ALERT_3_G Number of Least-Squares Restraints ............. 3 Note
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 6 ALERT level C = Check. Ensure it is not caused by an omission or oversight 8 ALERT level G = General information/check it is not something unexpected 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 2 ALERT type 2 Indicator that the structure model may be wrong or deficient 3 ALERT type 3 Indicator that the structure quality may be low 6 ALERT type 4 Improvement, methodology, query or suggestion 1 ALERT type 5 Informative message, check

Computing details top

Data collection: PAL ADSC Quantum-210 ADX (Arvai & Nielsen, 1983); cell refinement: HKL3000sm (Otwinowski & Minor, 1997); data reduction: HKL3000sm (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015b); molecular graphics: DIAMOND (Putz & Brandenburg, 2007); software used to prepare material for publication: publCIF (Westrip, 2010).

Hexakis(urea-κO)chromium(III) dichromate bromide monohydrate top
Crystal data top
[Cr(CH4N2O)6](Cr2O7)Br·H2OF(000) = 1460
Mr = 726.30Dx = 1.850 Mg m3
Monoclinic, P2/nSynchrotron radiation, λ = 0.620 Å
a = 13.774 (3) ÅCell parameters from 102484 reflections
b = 10.474 (2) Åθ = 0.4–33.6°
c = 18.123 (4) ŵ = 1.97 mm1
β = 94.37 (3)°T = 243 K
V = 2607.0 (9) Å3Block, green
Z = 40.17 × 0.08 × 0.04 mm
Data collection top
ADSC Q210 CCD area-detector
diffractometer
5831 reflections with I > 2σ(I)
Radiation source: PLSII 2D bending magnetRint = 0.036
ω scansθmax = 25.5°, θmin = 1.6°
Absorption correction: empirical (using intensity measurements)
(HKL3000sm SCALEPACK; Otwinowski & Minor, 1997)
h = 1919
Tmin = 0.727, Tmax = 0.920k = 1414
27665 measured reflectionsl = 2525
7308 independent reflections
Refinement top
Refinement on F23 restraints
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.031H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.091 w = 1/[σ2(Fo2) + (0.0607P)2]
where P = (Fo2 + 2Fc2)/3
S = 1.04(Δ/σ)max = 0.001
7308 reflectionsΔρmax = 1.02 e Å3
331 parametersΔρmin = 1.25 e Å3
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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cr1A0.48784 (2)0.24358 (2)0.73428 (2)0.01814 (7)
O1A0.40481 (9)0.09045 (11)0.72718 (6)0.0269 (3)
N1A0.33471 (14)0.09246 (16)0.69010 (10)0.0418 (4)
H1A10.32860.11310.73600.050*
H1A20.31400.14410.65470.050*
N2A0.38377 (13)0.04656 (16)0.60403 (9)0.0365 (4)
H2A10.41030.11850.59250.044*
H2A20.36270.00620.56940.044*
C1A0.37546 (13)0.01753 (16)0.67403 (9)0.0251 (3)
O2A0.58364 (9)0.16617 (11)0.67175 (6)0.0247 (2)
N3A0.61554 (13)0.03008 (15)0.72164 (9)0.0363 (4)
H3A10.57740.01670.75690.044*
H3A20.64640.10230.71940.044*
N4A0.68354 (14)0.03653 (17)0.61675 (10)0.0432 (4)
H4A10.69040.09390.58280.052*
H4A20.71400.03600.61510.052*
C2A0.62668 (13)0.05977 (16)0.67111 (9)0.0247 (3)
O3A0.55288 (9)0.15949 (11)0.82167 (6)0.0242 (2)
N5A0.58535 (13)0.11285 (15)0.94126 (8)0.0351 (4)
H5A10.57430.03260.93160.042*
H5A20.60180.13700.98640.042*
N6A0.59470 (13)0.31974 (15)0.90232 (9)0.0352 (4)
H6A10.58990.37620.86700.042*
H6A20.61110.34340.94760.042*
C3A0.57714 (12)0.19830 (17)0.88725 (9)0.0228 (3)
O4A0.56802 (9)0.39845 (11)0.74788 (6)0.0244 (2)
N7A0.66023 (14)0.41622 (16)0.64918 (10)0.0432 (5)
H7A10.65460.33510.63950.052*
H7A20.69370.46490.62170.052*
N8A0.62761 (13)0.58826 (15)0.72028 (9)0.0366 (4)
H8A10.60040.62130.75760.044*
H8A20.66130.63630.69250.044*
C4A0.61789 (12)0.46555 (16)0.70582 (9)0.0228 (3)
O5A0.39560 (9)0.33272 (11)0.79418 (6)0.0268 (3)
N9A0.34380 (13)0.17981 (16)0.87118 (9)0.0365 (4)
H9A10.35580.11950.84010.044*
H9A20.32030.16090.91300.044*
N10A0.34220 (13)0.39063 (16)0.90220 (9)0.0394 (4)
H10A0.35310.47020.89190.047*
H10B0.31870.37060.94390.047*
C5A0.36129 (12)0.30050 (18)0.85473 (9)0.0249 (3)
O6A0.42481 (9)0.31007 (11)0.64197 (6)0.0267 (3)
N11A0.38747 (13)0.44107 (17)0.54758 (9)0.0410 (4)
H11A0.40000.38020.51710.049*
H11B0.36860.51550.53060.049*
N12A0.37717 (14)0.51221 (16)0.66616 (9)0.0407 (4)
H12A0.38280.49850.71360.049*
H12B0.35840.58660.64910.049*
C6A0.39707 (13)0.42046 (16)0.62008 (9)0.0263 (3)
Cr1B0.43809 (2)0.74013 (3)0.86870 (2)0.02751 (8)
Cr2B0.67274 (2)0.73371 (2)0.89720 (2)0.02405 (7)
O1B0.42792 (12)0.65095 (15)0.93969 (8)0.0452 (4)
O2B0.36945 (13)0.6882 (2)0.79973 (9)0.0586 (5)
O3B0.41248 (13)0.88526 (15)0.88712 (10)0.0553 (4)
O4B0.69792 (12)0.59234 (12)0.92738 (9)0.0425 (3)
O5B0.75382 (11)0.78025 (13)0.84199 (8)0.0350 (3)
O6B0.66869 (12)0.83207 (14)0.96458 (8)0.0446 (4)
O7B0.56137 (12)0.73256 (16)0.84224 (9)0.0475 (4)
Br1C0.68438 (2)0.24957 (2)0.47474 (2)0.03324 (7)
O1W0.44307 (16)0.2183 (3)0.46645 (14)0.0752 (7)
H1O10.5018 (9)0.236 (3)0.460 (2)0.090*
H2O10.414 (2)0.224 (3)0.4242 (10)0.090*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cr1A0.02397 (14)0.01721 (12)0.01352 (12)0.00045 (9)0.00324 (9)0.00064 (8)
O1A0.0347 (7)0.0256 (6)0.0205 (6)0.0087 (5)0.0029 (5)0.0020 (4)
N1A0.0600 (12)0.0324 (9)0.0328 (9)0.0201 (8)0.0028 (8)0.0024 (7)
N2A0.0584 (11)0.0293 (8)0.0217 (7)0.0092 (7)0.0016 (7)0.0050 (6)
C1A0.0267 (8)0.0252 (8)0.0233 (8)0.0013 (6)0.0011 (6)0.0021 (6)
O2A0.0324 (6)0.0207 (5)0.0219 (5)0.0047 (5)0.0082 (5)0.0012 (4)
N3A0.0517 (10)0.0254 (7)0.0334 (8)0.0121 (7)0.0141 (7)0.0084 (6)
N4A0.0590 (11)0.0328 (8)0.0412 (10)0.0212 (8)0.0266 (8)0.0096 (7)
C2A0.0294 (9)0.0221 (7)0.0225 (8)0.0029 (6)0.0015 (6)0.0001 (6)
O3A0.0340 (7)0.0222 (5)0.0160 (5)0.0008 (5)0.0004 (4)0.0003 (4)
N5A0.0553 (11)0.0303 (8)0.0189 (7)0.0038 (7)0.0019 (7)0.0039 (6)
N6A0.0535 (10)0.0297 (8)0.0211 (7)0.0090 (7)0.0058 (7)0.0008 (6)
C3A0.0228 (8)0.0271 (8)0.0185 (7)0.0025 (6)0.0020 (6)0.0002 (6)
O4A0.0318 (6)0.0227 (6)0.0195 (5)0.0069 (5)0.0071 (5)0.0003 (4)
N7A0.0638 (12)0.0300 (8)0.0403 (10)0.0118 (8)0.0336 (9)0.0061 (7)
N8A0.0521 (10)0.0250 (7)0.0352 (8)0.0146 (7)0.0194 (8)0.0063 (6)
C4A0.0260 (8)0.0240 (7)0.0186 (7)0.0051 (6)0.0024 (6)0.0000 (6)
O5A0.0320 (7)0.0264 (6)0.0234 (6)0.0031 (5)0.0108 (5)0.0025 (5)
N9A0.0468 (10)0.0337 (8)0.0312 (8)0.0092 (7)0.0179 (7)0.0007 (7)
N10A0.0522 (11)0.0358 (9)0.0330 (9)0.0025 (8)0.0224 (8)0.0046 (7)
C5A0.0200 (8)0.0314 (9)0.0239 (8)0.0003 (6)0.0060 (6)0.0002 (6)
O6A0.0372 (7)0.0231 (6)0.0192 (5)0.0041 (5)0.0018 (5)0.0018 (4)
N11A0.0637 (12)0.0345 (9)0.0242 (8)0.0140 (8)0.0005 (8)0.0082 (7)
N12A0.0614 (12)0.0286 (8)0.0307 (9)0.0152 (8)0.0061 (8)0.0029 (6)
C6A0.0281 (9)0.0253 (8)0.0248 (8)0.0009 (7)0.0026 (7)0.0024 (6)
Cr1B0.03041 (16)0.03174 (16)0.02060 (14)0.00408 (11)0.00341 (11)0.00030 (10)
Cr2B0.03046 (15)0.02096 (13)0.02202 (14)0.00009 (10)0.01038 (11)0.00170 (10)
O1B0.0603 (10)0.0450 (9)0.0315 (7)0.0022 (7)0.0112 (7)0.0076 (6)
O2B0.0538 (11)0.0844 (13)0.0358 (9)0.0078 (10)0.0086 (7)0.0112 (9)
O3B0.0664 (12)0.0354 (8)0.0655 (11)0.0140 (8)0.0136 (9)0.0039 (8)
O4B0.0544 (9)0.0253 (7)0.0493 (9)0.0019 (6)0.0139 (7)0.0074 (6)
O5B0.0439 (8)0.0273 (6)0.0364 (7)0.0072 (6)0.0200 (6)0.0046 (5)
O6B0.0658 (10)0.0378 (8)0.0321 (7)0.0006 (7)0.0166 (7)0.0119 (6)
O7B0.0365 (9)0.0763 (12)0.0306 (8)0.0079 (7)0.0076 (6)0.0056 (7)
Br1C0.04246 (12)0.02884 (10)0.02779 (11)0.00280 (7)0.00149 (8)0.00060 (6)
O1W0.0493 (12)0.0971 (16)0.0789 (16)0.0032 (12)0.0040 (11)0.0419 (14)
Geometric parameters (Å, º) top
Cr1A—O6A1.9534 (13)N7A—H7A10.8700
Cr1A—O4A1.9672 (12)N7A—H7A20.8700
Cr1A—O3A1.9674 (12)N8A—C4A1.316 (2)
Cr1A—O5A1.9683 (12)N8A—H8A10.8700
Cr1A—O1A1.9685 (12)N8A—H8A20.8700
Cr1A—O2A1.9776 (12)O5A—C5A1.273 (2)
O1A—C1A1.271 (2)N9A—C5A1.325 (3)
N1A—C1A1.324 (2)N9A—H9A10.8700
N1A—H1A10.8700N9A—H9A20.8700
N1A—H1A20.8700N10A—C5A1.317 (2)
N2A—C1A1.318 (2)N10A—H10A0.8700
N2A—H2A10.8700N10A—H10B0.8700
N2A—H2A20.8700O6A—C6A1.272 (2)
O2A—C2A1.263 (2)N11A—C6A1.328 (2)
N3A—C2A1.330 (2)N11A—H11A0.8700
N3A—H3A10.8700N11A—H11B0.8700
N3A—H3A20.8700N12A—C6A1.316 (2)
N4A—C2A1.327 (2)N12A—H12A0.8700
N4A—H4A10.8700N12A—H12B0.8700
N4A—H4A20.8700Cr1B—O3B1.6014 (16)
O3A—C3A1.2763 (19)Cr1B—O2B1.6036 (17)
N5A—C3A1.325 (2)Cr1B—O1B1.6045 (15)
N5A—H5A10.8700Cr1B—O7B1.8011 (17)
N5A—H5A20.8700Cr2B—O6B1.6018 (14)
N6A—C3A1.319 (2)Cr2B—O4B1.6071 (14)
N6A—H6A10.8700Cr2B—O5B1.6299 (14)
N6A—H6A20.8700Cr2B—O7B1.7643 (18)
O4A—C4A1.2753 (19)O1W—H1O10.847 (10)
N7A—C4A1.324 (2)O1W—H2O10.840 (10)
O6A—Cr1A—O4A91.26 (5)C4A—O4A—Cr1A134.62 (11)
O6A—Cr1A—O3A173.94 (5)C4A—N7A—H7A1120.0
O4A—Cr1A—O3A92.95 (5)C4A—N7A—H7A2120.0
O6A—Cr1A—O5A92.28 (5)H7A1—N7A—H7A2120.0
O4A—Cr1A—O5A85.39 (5)C4A—N8A—H8A1120.0
O3A—Cr1A—O5A92.40 (5)C4A—N8A—H8A2120.0
O6A—Cr1A—O1A90.94 (5)H8A1—N8A—H8A2120.0
O4A—Cr1A—O1A176.27 (5)O4A—C4A—N8A118.05 (15)
O3A—Cr1A—O1A85.10 (5)O4A—C4A—N7A122.52 (15)
O5A—Cr1A—O1A91.51 (5)N8A—C4A—N7A119.42 (16)
O6A—Cr1A—O2A85.86 (5)C5A—O5A—Cr1A130.34 (11)
O4A—Cr1A—O2A90.98 (5)C5A—N9A—H9A1120.0
O3A—Cr1A—O2A89.71 (5)C5A—N9A—H9A2120.0
O5A—Cr1A—O2A175.89 (5)H9A1—N9A—H9A2120.0
O1A—Cr1A—O2A92.18 (5)C5A—N10A—H10A120.0
C1A—O1A—Cr1A133.54 (11)C5A—N10A—H10B120.0
C1A—N1A—H1A1120.0H10A—N10A—H10B120.0
C1A—N1A—H1A2120.0O5A—C5A—N10A118.60 (17)
H1A1—N1A—H1A2120.0O5A—C5A—N9A122.19 (16)
C1A—N2A—H2A1120.0N10A—C5A—N9A119.21 (16)
C1A—N2A—H2A2120.0C6A—O6A—Cr1A134.00 (11)
H2A1—N2A—H2A2120.0C6A—N11A—H11A120.0
O1A—C1A—N2A123.02 (16)C6A—N11A—H11B120.0
O1A—C1A—N1A118.16 (16)H11A—N11A—H11B120.0
N2A—C1A—N1A118.82 (16)C6A—N12A—H12A120.0
C2A—O2A—Cr1A134.53 (11)C6A—N12A—H12B120.0
C2A—N3A—H3A1120.0H12A—N12A—H12B120.0
C2A—N3A—H3A2120.0O6A—C6A—N12A122.57 (16)
H3A1—N3A—H3A2120.0O6A—C6A—N11A117.47 (16)
C2A—N4A—H4A1120.0N12A—C6A—N11A119.95 (17)
C2A—N4A—H4A2120.0O3B—Cr1B—O2B110.98 (10)
H4A1—N4A—H4A2120.0O3B—Cr1B—O1B110.57 (9)
O2A—C2A—N4A118.21 (16)O2B—Cr1B—O1B110.20 (10)
O2A—C2A—N3A122.64 (16)O3B—Cr1B—O7B108.93 (8)
N4A—C2A—N3A119.13 (16)O2B—Cr1B—O7B106.82 (9)
C3A—O3A—Cr1A132.68 (11)O1B—Cr1B—O7B109.24 (9)
C3A—N5A—H5A1120.0O6B—Cr2B—O4B110.63 (8)
C3A—N5A—H5A2120.0O6B—Cr2B—O5B109.93 (8)
H5A1—N5A—H5A2120.0O4B—Cr2B—O5B110.14 (8)
C3A—N6A—H6A1120.0O6B—Cr2B—O7B110.82 (8)
C3A—N6A—H6A2120.0O4B—Cr2B—O7B109.98 (8)
H6A1—N6A—H6A2120.0O5B—Cr2B—O7B105.21 (8)
O3A—C3A—N6A122.05 (15)Cr2B—O7B—Cr1B130.26 (10)
O3A—C3A—N5A118.32 (16)H1O1—O1W—H2O1104 (2)
N6A—C3A—N5A119.63 (15)
Cr1A—O1A—C1A—N2A12.6 (3)Cr1A—O5A—C5A—N9A33.6 (2)
Cr1A—O1A—C1A—N1A167.40 (14)Cr1A—O6A—C6A—N12A23.3 (3)
Cr1A—O2A—C2A—N4A175.80 (14)Cr1A—O6A—C6A—N11A157.35 (14)
Cr1A—O2A—C2A—N3A2.8 (3)O6B—Cr2B—O7B—Cr1B39.64 (15)
Cr1A—O3A—C3A—N6A26.1 (2)O4B—Cr2B—O7B—Cr1B83.00 (13)
Cr1A—O3A—C3A—N5A154.40 (13)O5B—Cr2B—O7B—Cr1B158.42 (12)
Cr1A—O4A—C4A—N8A150.59 (14)O3B—Cr1B—O7B—Cr2B78.99 (14)
Cr1A—O4A—C4A—N7A29.9 (3)O2B—Cr1B—O7B—Cr2B161.07 (13)
Cr1A—O5A—C5A—N10A146.75 (14)O1B—Cr1B—O7B—Cr2B41.89 (15)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1A—H1A1···O2Bi0.872.423.051 (3)129
N1A—H1A2···Br1Cii0.872.603.4031 (18)155
N2A—H2A1···O6A0.872.202.890 (2)136
N2A—H2A1···O1W0.872.583.230 (3)132
N2A—H2A2···Br1Cii0.872.733.5121 (17)150
N3A—H3A1···O3A0.872.232.866 (2)130
N3A—H3A2···O5Biii0.872.212.972 (2)147
N4A—H4A1···Br1C0.872.553.4070 (18)171
N4A—H4A2···O5Biii0.872.112.900 (2)151
N5A—H5A1···O6Bi0.872.523.174 (2)133
N5A—H5A2···O3Biv0.872.333.108 (2)150
N6A—H6A1···O4A0.872.172.914 (2)143
N6A—H6A2···O1Biv0.872.152.920 (2)147
N7A—H7A1···O2A0.872.122.865 (2)143
N7A—H7A2···O4Bv0.872.243.092 (2)168
N8A—H8A1···O7B0.872.032.883 (2)166
N8A—H8A2···O5Bv0.872.042.875 (2)162
N9A—H9A1···O1A0.872.222.954 (2)141
N9A—H9A2···O6Biv0.872.212.997 (2)150
N10A—H10A···O1B0.872.293.028 (2)142
N10A—H10B···O4Biv0.872.393.184 (2)151
N11A—H11A···O1W0.872.042.892 (3)167
N11A—H11B···Br1Cvi0.872.573.4031 (18)162
N12A—H12A···O5A0.872.272.982 (2)140
N12A—H12A···O2B0.872.543.051 (2)118
N12A—H12B···Br1Cvi0.872.853.6242 (18)149
O1W—H1O1···Br1C0.85 (1)2.51 (1)3.332 (2)163 (3)
O1W—H2O1···O5Bvii0.84 (1)2.57 (2)3.315 (3)149 (3)
Symmetry codes: (i) x, y1, z; (ii) x+1, y, z+1; (iii) x+3/2, y1, z+3/2; (iv) x+1, y+1, z+2; (v) x+3/2, y, z+3/2; (vi) x+1, y+1, z+1; (vii) x1/2, y+1, z1/2.
 

Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds