metal-organic compounds
fac-(2-Amidoethyl-κ2C1,O)trichlorido(urea-κO)tin(IV)
aDepartment of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB24 3UE, Scotland, bDepartamento de Química, Instituto de Cie^ncias Exatas, Universidade Federal de Minas Gerais, Avenida Anto^nio Carlos, 6627 Pampulha, 31270-901 Belo Horizonte, MG, Brazil, cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, dCentro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz (FIOCRUZ), Casa Amarela, Campus de Manguinhos, Av. Brasil 4365, 21040-900, Rio de Janeiro, RJ, Brazil, and eCHEMSOL, 1 Harcourt Road, Aberdeen AB15 5NY, Scotland
*Correspondence e-mail: Edward.Tiekink@gmail.com
The Sn atom in the title compound, [Sn(C3H6NO)Cl3(CH4N2O)], is octahedrally coordinated within a CCl3NO donor set provided by a chelating amidoethyl ligand (C and O), a urea-O atom and three facially arranged Cl atoms. Systematic variations in the Sn—Cl bond distances are correlated with the relative trans influence exerted by the C and carbonyl-O atoms. The three-dimensional crystal packing is stabilized by N—H⋯O and N—H⋯Cl hydrogen bonds.
Related literature
For background and for related Sn[OCH(NH2)CH2CH2]Cl3L structures, see: Howie et al. (2011); Wardell et al. (2010); Tiekink et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: COLLECT (Hooft, 1998); cell DENZO (Otwinowski & Minor, 1997) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811038281/qm2029sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811038281/qm2029Isup2.hkl
A solution of the complex, (H2NCOCH2CH2-C,O)(EtCONH2-O)SnCl3, isolated from a reaction mixture containing SnCl2, HCl and H2C═CHCONH2 in Et2O (Howie et al., 2011) (0.74 g, 2 mmol) and urea (10 mmol) in ethanol (20 ml) was heated at 313 K for 30 min. Crystals of (H2NCOCH2CH2-C,O)(H2NCONH2-O)SnCl3 (I) were harvested from the reaction solution maintained at room temperature, M.pt. 469–471 K. The sample used in the was grown from its acetone solution. (IR, cm-1): 3300–2500 (v. br), 1698 (s, br), 1590, 1574, 1486, 1427, 1411, 1303, 1263, 1139, 1087, 1102, 1087, 1074, 1004, 916, 898, 850, 808, 750, 719, 667, 652, 544, 496, 416.
The C-bound H atoms were geometrically placed (C–H = 0.99 Å) and refined as riding with Uiso(H) = 1.2Ueq(C). The N-bound H atoms were located from a difference map and their positions refined with Uiso(H) = 1.2Ueq(N).
The title compound, (I), was investigated as part of a wider study of 2-amidoethyl-tin compounds (Tiekink et al., 2006; Wardell et al., 2010, Howie et al., 2011, and references therein). The title compound was obtained by a ligand exchange reaction between (H2NCOCH2CH2-C,O)(EtCONH2-O)SnCl3, obtained as previously reported (Howie et al., 2011), and urea.
The Sn atom in (I), Fig. 1, is octahedrally coordinated within a CCl3O2 provided by the C,O donors derived from a chelating amidoethyl ligand, a urea-O atom and three Cl atoms, the latter are arranged facially. There is significant disparity in the Sn—Cl bond distances, Table 1. As observed in the related Sn[OCH(NH2)CH2CH2]Cl3L structures where L = 3-chloropropionamide (Tiekink et al. (2006) and L = water (co-crystallized as a 1:2 18-crown-6 complex) (Wardell et al., 2010), these can be explained in terms to the relative trans influence exerted by the remaining donor atoms. Thus, the Cl1 atom, trans to a C atom, forms a significantly shorter Sn—Cl bond than the other Cl atoms. The elongation of the Sn—Cl3 bond distance with respect to the Sn—O2 distance is related to the stronger coordinating ability of the urea-O atom. Distortions from the ideal octahedral geometry are not great with the maximum deviation found in the C1—Sn—Cl1 angle of 162.84 (7) °.
As anticipated with three amino residues in the structure, there are significant hydrogen bonding interactions operating in the
of (I), Table 2. While all amino-H participate in hydrogen bonding interactions, Table 2, two of these atoms, i.e. H4n and H5n, are bifurcated and so the hydrogen bonding distances are relatively long. The hydrogen bonding scheme leads to a three-dimensional architecture, Fig. 2.For background and for related Sn[OCH(NH2)CH2CH2]Cl3L structures, see: Howie et al. (2011); Wardell et al. (2010); Tiekink et al. (2006).
Data collection: COLLECT (Hooft, 1998); cell
DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); data reduction: DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structure of (I) showing the atom-labelling scheme and displacement ellipsoids at the 50% probability level. | |
Fig. 2. A view in projection down the a axis of the unit-cell contents of (I). The The N—H···O and N—H···Cl hydrogen bonds are shown as blue and orange dashed lines, respectively. |
[Sn(C3H6NO)Cl3(CH4N2O)] | F(000) = 1376 |
Mr = 357.19 | Dx = 2.212 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 2702 reflections |
a = 11.1223 (2) Å | θ = 2.9–27.5° |
b = 12.0180 (3) Å | µ = 3.10 mm−1 |
c = 16.0461 (5) Å | T = 120 K |
V = 2144.85 (9) Å3 | Plate, colourless |
Z = 8 | 0.14 × 0.08 × 0.03 mm |
Bruker–Nonius APEXII CCD camera on κ-goniostat diffractometer | 2451 independent reflections |
Radiation source: Bruker-Nonius FR591 rotating anode | 2242 reflections with I > 2σ(I) |
10cm confocal mirrors monochromator | Rint = 0.039 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 3.1° |
φ & ω scans | h = −13→14 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | k = −12→15 |
Tmin = 0.738, Tmax = 0.913 | l = −19→20 |
12333 measured 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)] = 0.022 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.051 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | w = 1/[σ2(Fo2) + (0.P)2 + 3.4389P] where P = (Fo2 + 2Fc2)/3 |
2451 reflections | (Δ/σ)max = 0.001 |
136 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.41 e Å−3 |
[Sn(C3H6NO)Cl3(CH4N2O)] | V = 2144.85 (9) Å3 |
Mr = 357.19 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 11.1223 (2) Å | µ = 3.10 mm−1 |
b = 12.0180 (3) Å | T = 120 K |
c = 16.0461 (5) Å | 0.14 × 0.08 × 0.03 mm |
Bruker–Nonius APEXII CCD camera on κ-goniostat diffractometer | 2451 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | 2242 reflections with I > 2σ(I) |
Tmin = 0.738, Tmax = 0.913 | Rint = 0.039 |
12333 measured reflections |
R[F2 > 2σ(F2)] = 0.022 | 0 restraints |
wR(F2) = 0.051 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | Δρmax = 0.42 e Å−3 |
2451 reflections | Δρmin = −0.41 e Å−3 |
136 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | ||
Sn | 0.536685 (14) | 0.238549 (14) | 0.600556 (10) | 0.01156 (6) | |
Cl1 | 0.40499 (6) | 0.32834 (5) | 0.69733 (4) | 0.02118 (14) | |
Cl2 | 0.61521 (5) | 0.11894 (5) | 0.70850 (4) | 0.01937 (14) | |
Cl3 | 0.69075 (6) | 0.38320 (5) | 0.62367 (4) | 0.01866 (14) | |
O1 | 0.44877 (15) | 0.34588 (14) | 0.50652 (10) | 0.0147 (4) | |
O2 | 0.38496 (16) | 0.12814 (16) | 0.57517 (11) | 0.0202 (4) | |
N1 | 0.3982 (2) | 0.3491 (2) | 0.37174 (14) | 0.0194 (5) | |
H1N | 0.360 (3) | 0.405 (3) | 0.378 (2) | 0.023* | |
H2N | 0.403 (3) | 0.321 (3) | 0.328 (2) | 0.023* | |
N2 | 0.2038 (2) | 0.0487 (2) | 0.58401 (15) | 0.0177 (5) | |
H3N | 0.191 (3) | 0.069 (2) | 0.531 (2) | 0.021* | |
H4N | 0.160 (3) | −0.006 (3) | 0.6044 (18) | 0.021* | |
N3 | 0.3448 (2) | 0.01609 (19) | 0.68601 (14) | 0.0182 (5) | |
H5N | 0.296 (3) | −0.026 (2) | 0.713 (2) | 0.022* | |
H6N | 0.411 (3) | 0.024 (3) | 0.7044 (19) | 0.022* | |
C1 | 0.6109 (2) | 0.1691 (2) | 0.48944 (15) | 0.0166 (5) | |
H1A | 0.6918 | 0.2004 | 0.4789 | 0.020* | |
H1B | 0.6183 | 0.0873 | 0.4949 | 0.020* | |
C2 | 0.5261 (2) | 0.1983 (2) | 0.41798 (16) | 0.0173 (5) | |
H2A | 0.5736 | 0.2077 | 0.3663 | 0.021* | |
H2B | 0.4694 | 0.1359 | 0.4092 | 0.021* | |
C3 | 0.4551 (2) | 0.3040 (2) | 0.43435 (15) | 0.0141 (5) | |
C4 | 0.3135 (2) | 0.0653 (2) | 0.61521 (15) | 0.0148 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Sn | 0.01312 (11) | 0.01191 (10) | 0.00966 (10) | 0.00196 (6) | 0.00039 (6) | 0.00036 (6) |
Cl1 | 0.0263 (3) | 0.0240 (3) | 0.0133 (3) | 0.0119 (3) | 0.0043 (3) | 0.0018 (2) |
Cl2 | 0.0177 (3) | 0.0225 (3) | 0.0179 (3) | 0.0042 (2) | −0.0017 (2) | 0.0074 (2) |
Cl3 | 0.0221 (3) | 0.0154 (3) | 0.0185 (3) | −0.0029 (2) | −0.0031 (2) | −0.0013 (2) |
O1 | 0.0177 (9) | 0.0146 (9) | 0.0119 (8) | 0.0039 (7) | 0.0003 (7) | 0.0000 (7) |
O2 | 0.0207 (9) | 0.0254 (10) | 0.0145 (9) | −0.0095 (8) | −0.0003 (7) | 0.0025 (7) |
N1 | 0.0258 (12) | 0.0216 (13) | 0.0107 (10) | 0.0070 (10) | −0.0013 (9) | −0.0022 (9) |
N2 | 0.0149 (11) | 0.0195 (12) | 0.0187 (11) | −0.0038 (9) | 0.0006 (9) | 0.0023 (9) |
N3 | 0.0162 (11) | 0.0210 (12) | 0.0175 (11) | −0.0018 (9) | 0.0016 (9) | 0.0041 (9) |
C1 | 0.0182 (12) | 0.0183 (13) | 0.0132 (12) | 0.0035 (10) | 0.0031 (10) | −0.0027 (9) |
C2 | 0.0227 (13) | 0.0172 (13) | 0.0120 (11) | 0.0022 (11) | 0.0008 (10) | −0.0027 (10) |
C3 | 0.0121 (11) | 0.0155 (13) | 0.0148 (12) | −0.0042 (9) | 0.0029 (9) | 0.0018 (10) |
C4 | 0.0170 (12) | 0.0125 (12) | 0.0148 (12) | 0.0033 (10) | 0.0032 (9) | −0.0018 (9) |
Sn—Cl1 | 2.3919 (6) | N2—H3N | 0.90 (3) |
Sn—Cl2 | 2.4144 (6) | N2—H4N | 0.89 (3) |
Sn—Cl3 | 2.4690 (6) | N3—C4 | 1.327 (3) |
Sn—O1 | 2.2129 (17) | N3—H5N | 0.86 (3) |
Sn—O2 | 2.1850 (18) | N3—H6N | 0.80 (3) |
Sn—C1 | 2.135 (2) | C1—C2 | 1.526 (3) |
O1—C3 | 1.265 (3) | C1—H1A | 0.9900 |
O2—C4 | 1.271 (3) | C1—H1B | 0.9900 |
N1—C3 | 1.305 (3) | C2—C3 | 1.519 (4) |
N1—H1N | 0.81 (3) | C2—H2A | 0.9900 |
N1—H2N | 0.78 (3) | C2—H2B | 0.9900 |
N2—C4 | 1.334 (3) | ||
C1—Sn—O2 | 84.59 (9) | H3N—N2—H4N | 117 (3) |
C1—Sn—O1 | 80.18 (8) | C4—N3—H5N | 121 (2) |
O2—Sn—O1 | 83.43 (7) | C4—N3—H6N | 120 (2) |
C1—Sn—Cl1 | 162.84 (7) | H5N—N3—H6N | 118 (3) |
O2—Sn—Cl1 | 85.53 (5) | C2—C1—Sn | 107.38 (16) |
O1—Sn—Cl1 | 84.79 (5) | C2—C1—H1A | 110.2 |
C1—Sn—Cl2 | 103.09 (7) | Sn—C1—H1A | 110.2 |
O2—Sn—Cl2 | 92.95 (5) | C2—C1—H1B | 110.2 |
O1—Sn—Cl2 | 174.92 (5) | Sn—C1—H1B | 110.2 |
Cl1—Sn—Cl2 | 91.39 (2) | H1A—C1—H1B | 108.5 |
C1—Sn—Cl3 | 97.60 (7) | C3—C2—C1 | 112.6 (2) |
O2—Sn—Cl3 | 172.57 (5) | C3—C2—H2A | 109.1 |
O1—Sn—Cl3 | 89.92 (5) | C1—C2—H2A | 109.1 |
Cl1—Sn—Cl3 | 90.56 (2) | C3—C2—H2B | 109.1 |
Cl2—Sn—Cl3 | 93.46 (2) | C1—C2—H2B | 109.1 |
C3—O1—Sn | 111.56 (15) | H2A—C2—H2B | 107.8 |
C4—O2—Sn | 138.58 (16) | O1—C3—N1 | 120.8 (2) |
C3—N1—H1N | 121 (2) | O1—C3—C2 | 121.4 (2) |
C3—N1—H2N | 119 (2) | N1—C3—C2 | 117.8 (2) |
H1N—N1—H2N | 120 (3) | O2—C4—N3 | 122.2 (2) |
C4—N2—H3N | 117.7 (19) | O2—C4—N2 | 118.1 (2) |
C4—N2—H4N | 119 (2) | N3—C4—N2 | 119.7 (2) |
C1—Sn—O1—C3 | 16.38 (17) | O1—Sn—C1—C2 | −22.51 (17) |
O2—Sn—O1—C3 | −69.23 (16) | Cl1—Sn—C1—C2 | 6.7 (4) |
Cl1—Sn—O1—C3 | −155.32 (16) | Cl2—Sn—C1—C2 | 153.52 (16) |
Cl2—Sn—O1—C3 | −114.0 (5) | Cl3—Sn—C1—C2 | −111.11 (17) |
Cl3—Sn—O1—C3 | 114.11 (15) | Sn—C1—C2—C3 | 26.7 (3) |
C1—Sn—O2—C4 | 139.7 (3) | Sn—O1—C3—N1 | 173.13 (19) |
O1—Sn—O2—C4 | −139.6 (3) | Sn—O1—C3—C2 | −5.3 (3) |
Cl1—Sn—O2—C4 | −54.3 (3) | C1—C2—C3—O1 | −14.9 (3) |
Cl2—Sn—O2—C4 | 36.8 (3) | C1—C2—C3—N1 | 166.6 (2) |
Cl3—Sn—O2—C4 | −112.8 (4) | Sn—O2—C4—N3 | −28.6 (4) |
O2—Sn—C1—C2 | 61.74 (17) | Sn—O2—C4—N2 | 151.7 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···Cl3i | 0.81 (3) | 2.60 (3) | 3.366 (3) | 159 (3) |
N1—H2n···Cl1ii | 0.78 (3) | 2.76 (3) | 3.519 (3) | 164 (3) |
N2—H3n···Cl3iii | 0.90 (3) | 2.55 (3) | 3.435 (2) | 170 (3) |
N2—H4n···Cl1iv | 0.89 (3) | 2.59 (3) | 3.432 (2) | 160 (3) |
N2—H4n···O1iv | 0.89 (3) | 2.66 (3) | 3.219 (3) | 122 (2) |
N3—H5n···Cl1iv | 0.86 (3) | 2.85 (3) | 3.584 (3) | 145 (3) |
N3—H5n···Cl3v | 0.86 (3) | 2.85 (3) | 3.469 (2) | 131 (2) |
N3—H6n···Cl2 | 0.80 (3) | 2.54 (3) | 3.272 (3) | 152 (3) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x, −y+1/2, z−1/2; (iii) x−1/2, −y+1/2, −z+1; (iv) −x+1/2, y−1/2, z; (v) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | [Sn(C3H6NO)Cl3(CH4N2O)] |
Mr | 357.19 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 120 |
a, b, c (Å) | 11.1223 (2), 12.0180 (3), 16.0461 (5) |
V (Å3) | 2144.85 (9) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 3.10 |
Crystal size (mm) | 0.14 × 0.08 × 0.03 |
Data collection | |
Diffractometer | Bruker–Nonius APEXII CCD camera on κ-goniostat |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2007) |
Tmin, Tmax | 0.738, 0.913 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12333, 2451, 2242 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.022, 0.051, 1.10 |
No. of reflections | 2451 |
No. of parameters | 136 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.42, −0.41 |
Computer programs: DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
Sn—Cl1 | 2.3919 (6) | Sn—O1 | 2.2129 (17) |
Sn—Cl2 | 2.4144 (6) | Sn—O2 | 2.1850 (18) |
Sn—Cl3 | 2.4690 (6) | Sn—C1 | 2.135 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···Cl3i | 0.81 (3) | 2.60 (3) | 3.366 (3) | 159 (3) |
N1—H2n···Cl1ii | 0.78 (3) | 2.76 (3) | 3.519 (3) | 164 (3) |
N2—H3n···Cl3iii | 0.90 (3) | 2.55 (3) | 3.435 (2) | 170 (3) |
N2—H4n···Cl1iv | 0.89 (3) | 2.59 (3) | 3.432 (2) | 160 (3) |
N2—H4n···O1iv | 0.89 (3) | 2.66 (3) | 3.219 (3) | 122 (2) |
N3—H5n···Cl1iv | 0.86 (3) | 2.85 (3) | 3.584 (3) | 145 (3) |
N3—H5n···Cl3v | 0.86 (3) | 2.85 (3) | 3.469 (2) | 131 (2) |
N3—H6n···Cl2 | 0.80 (3) | 2.54 (3) | 3.272 (3) | 152 (3) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x, −y+1/2, z−1/2; (iii) x−1/2, −y+1/2, −z+1; (iv) −x+1/2, y−1/2, z; (v) −x+1, y−1/2, −z+3/2. |
Footnotes
‡Additional correspondence author, e-mail: j.wardell@abdn.ac.uk.
Acknowledgements
The use of the EPSRC X-ray crystallographic service at the University of Southampton, England, and the valuable assistance of the staff there is gratefully acknowledged. JLW acknowledges support from CAPES (Brazil).
References
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The title compound, (I), was investigated as part of a wider study of 2-amidoethyl-tin compounds (Tiekink et al., 2006; Wardell et al., 2010, Howie et al., 2011, and references therein). The title compound was obtained by a ligand exchange reaction between (H2NCOCH2CH2-C,O)(EtCONH2-O)SnCl3, obtained as previously reported (Howie et al., 2011), and urea.
The Sn atom in (I), Fig. 1, is octahedrally coordinated within a CCl3O2 provided by the C,O donors derived from a chelating amidoethyl ligand, a urea-O atom and three Cl atoms, the latter are arranged facially. There is significant disparity in the Sn—Cl bond distances, Table 1. As observed in the related Sn[OCH(NH2)CH2CH2]Cl3L structures where L = 3-chloropropionamide (Tiekink et al. (2006) and L = water (co-crystallized as a 1:2 18-crown-6 complex) (Wardell et al., 2010), these can be explained in terms to the relative trans influence exerted by the remaining donor atoms. Thus, the Cl1 atom, trans to a C atom, forms a significantly shorter Sn—Cl bond than the other Cl atoms. The elongation of the Sn—Cl3 bond distance with respect to the Sn—O2 distance is related to the stronger coordinating ability of the urea-O atom. Distortions from the ideal octahedral geometry are not great with the maximum deviation found in the C1—Sn—Cl1 angle of 162.84 (7) °.
As anticipated with three amino residues in the structure, there are significant hydrogen bonding interactions operating in the crystal structure of (I), Table 2. While all amino-H participate in hydrogen bonding interactions, Table 2, two of these atoms, i.e. H4n and H5n, are bifurcated and so the hydrogen bonding distances are relatively long. The hydrogen bonding scheme leads to a three-dimensional architecture, Fig. 2.