metal-organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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Bis{[2-(di­methyl­amino)­phen­yl](tri­methyl­sil­yl)meth­yl}cadmium

aDepartment of Biochemistry, Changzhi University, Shanxi, People's Republic of China
*Correspondence e-mail: limin0081.student@sina.com

(Received 24 December 2011; accepted 10 January 2012; online 18 January 2012)

In the crystal structure of the title compound, [Cd(C12H20NSi)2], the CdII cation is coordinated by two N and two C atoms within an irregular polyhedron. The four Cd—X (X = C, N) bond lengths are in the range 2.166 (4)–2.513 (4) Å.

Related literature

For structures of related Cd–alkyl and Cd–aryl complexes, see: Schmidbaur et al. (1981[Schmidbaur, H., Costa, T. & Milewski-Mahrla, B. (1981). Chem. Ber. 114, 1428-1441.]). For the synthesis of related compounds, see: Tong et al. (2011[Tong, H.-B., Li, M., Bai, S.-D., Yuan, S.-F., Chao, J.-B., Huang, S.-P. & Liu, D.-S. (2011). Dalton Trans. 40, 4236-4241.]).

[Scheme 1]

Experimental

Crystal data
  • [Cd(C12H20NSi)2]

  • Mr = 525.16

  • Triclinic, [P \overline 1]

  • a = 9.341 (6) Å

  • b = 11.011 (5) Å

  • c = 13.605 (8) Å

  • α = 87.80 (4)°

  • β = 88.31 (3)°

  • γ = 77.30 (5)°

  • V = 1363.7 (13) Å3

  • Z = 2

  • Mo Kα radiation

  • μ = 0.90 mm−1

  • T = 230 K

  • 0.40 × 0.30 × 0.30 mm

Data collection
  • Bruker SMART APEX CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.715, Tmax = 0.774

  • 5641 measured reflections

  • 4701 independent reflections

  • 4067 reflections with I > 2σ(I)

  • Rint = 0.015

Refinement
  • R[F2 > 2σ(F2)] = 0.041

  • wR(F2) = 0.086

  • S = 1.09

  • 4701 reflections

  • 280 parameters

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.60 e Å−3

  • Δρmin = −0.24 e Å−3

Data collection: SMART (Siemens, 1996[Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Siemens, 1996[Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXL97.

Supporting information


Comment top

Although several Cd complexes were reported Cd-alkyl or Cd-aryl complexes are still rare (Schmidbaur, et al., 1981). For the synthesis of such complexes the corresponding lithium compounds are useful reactands (Tong, et al., 2011). In the course of synthesizing new Cd complexes we obtained crystals of the title compound which were characterized by single crystal X-ray diffraction.

In the crystal structure of the title compound the Cd(II) cation are 4-fold coordinated by two nitrogen and two carbon atoms. The Cd–C bond lengths amount to 2.166 (4)(Cd—C1) and 2.169 (3)(Cd—C13)Å, and the Cd–N bond lengths are 2.503 (3) Å (Cd—N2) and 2.513 (4) Å(Cd—N1). The C1- Cd1—C13 bond angle is 167.3 (1)°) and the coordination environment around the Cd cations can be described as a irregular polyhedron.fragment.

Related literature top

For structures of related Cd–alkyl and Cd–aryl complexes see: Schmidbaur et al. (1981). For the synthesis of related compounds, see: Tong et al. (2011).

Experimental top

All manipulations were carried out under argon using standard Schlenk techniques. A solution of 2-dimethylamino-R-trimethylsilylbenzyl-Li (0.43 g, 0.2 mmol in 20 ml hexane) was slowly added to a stirred suspension of CdCl2 (0.13 g, 0.1 mmol) in hexane (ca 10 ml) at ca 273 K. The resulting mixture was slowly warmed to room temperature and stirred for an additional 5 h to give a white precipitate of LiCl. The mixture was filtered and the filtrate was carefully concentrated in vacuum to give colorless crystal of the title compound.

Refinement top

The H atoms were positioned with idealized geometry and refined isotropic with Uiso(H) = 1.2 Ueq(C) (1.5 for methyl H atoms).

Computing details top

Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); 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: SHELXL97 (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. Crystal structure of the title compound with labelling and displacement ellipsoids drawn at the 50% probability level.
Bis{[2-(dimethylamino)phenyl](trimethylsilyl)methyl}cadmium top
Crystal data top
[Cd(C12H20NSi)2]Z = 2
Mr = 525.16F(000) = 548
Triclinic, P1Dx = 1.279 Mg m3
a = 9.341 (6) ÅMo Kα radiation, λ = 0.71073 Å
b = 11.011 (5) ÅCell parameters from 3359 reflections
c = 13.605 (8) Åθ = 2.3–27.7°
α = 87.80 (4)°µ = 0.90 mm1
β = 88.31 (3)°T = 230 K
γ = 77.30 (5)°Stick, colorless
V = 1363.7 (13) Å30.40 × 0.30 × 0.30 mm
Data collection top
Bruker SMART APEX CCD
diffractometer
4701 independent reflections
Radiation source: fine-focus sealed tube4067 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.015
phi and ω scansθmax = 25.0°, θmin = 1.5°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 1011
Tmin = 0.715, Tmax = 0.774k = 1213
5641 measured reflectionsl = 1612
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)] = 0.041Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.086H atoms treated by a mixture of independent and constrained refinement
S = 1.09 w = 1/[σ2(Fo2) + (0.0331P)2 + 0.7748P]
where P = (Fo2 + 2Fc2)/3
4701 reflections(Δ/σ)max = 0.001
280 parametersΔρmax = 0.60 e Å3
0 restraintsΔρmin = 0.24 e Å3
Crystal data top
[Cd(C12H20NSi)2]γ = 77.30 (5)°
Mr = 525.16V = 1363.7 (13) Å3
Triclinic, P1Z = 2
a = 9.341 (6) ÅMo Kα radiation
b = 11.011 (5) ŵ = 0.90 mm1
c = 13.605 (8) ÅT = 230 K
α = 87.80 (4)°0.40 × 0.30 × 0.30 mm
β = 88.31 (3)°
Data collection top
Bruker SMART APEX CCD
diffractometer
4701 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
4067 reflections with I > 2σ(I)
Tmin = 0.715, Tmax = 0.774Rint = 0.015
5641 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0410 restraints
wR(F2) = 0.086H atoms treated by a mixture of independent and constrained refinement
S = 1.09Δρmax = 0.60 e Å3
4701 reflectionsΔρmin = 0.24 e Å3
280 parameters
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
Cd0.25382 (3)0.99621 (2)0.753955 (19)0.04535 (11)
Si20.52432 (12)0.76494 (10)0.83055 (8)0.0538 (3)
Si10.39659 (12)1.23578 (11)0.67425 (9)0.0577 (3)
C130.3230 (4)0.8293 (3)0.8458 (3)0.0447 (9)
N10.0380 (3)1.1417 (3)0.8311 (2)0.0513 (8)
C140.2231 (4)0.7414 (3)0.8309 (3)0.0455 (8)
C20.0830 (4)1.2435 (3)0.6727 (3)0.0498 (9)
C30.0275 (5)1.3305 (4)0.5981 (3)0.0672 (12)
H30.08671.33920.54330.081*
N20.1275 (3)0.8475 (3)0.6757 (2)0.0566 (8)
C70.0104 (4)1.2342 (3)0.7535 (3)0.0506 (9)
C10.2359 (4)1.1633 (4)0.6616 (3)0.0504 (9)
C160.1279 (5)0.5640 (4)0.8942 (4)0.0749 (13)
H160.12550.50360.94360.090*
C150.2164 (4)0.6483 (4)0.9027 (3)0.0589 (10)
H150.27350.64290.95810.071*
C190.1321 (4)0.7478 (3)0.7502 (3)0.0523 (9)
C240.5904 (5)0.6124 (4)0.8995 (4)0.0893 (16)
H24A0.56560.62250.96810.134*
H24B0.69500.58640.89130.134*
H24C0.54450.55060.87420.134*
C60.1501 (4)1.3103 (4)0.7582 (4)0.0709 (13)
H60.21001.30350.81300.085*
C210.0221 (5)0.9041 (5)0.6421 (4)0.0861 (15)
H21A0.05310.84940.59800.129*
H21B0.02200.98250.60870.129*
H21C0.08840.91730.69790.129*
C40.1137 (6)1.4044 (4)0.6036 (4)0.0870 (17)
H40.14841.46030.55220.104*
C170.0436 (6)0.5697 (4)0.8127 (4)0.0874 (16)
H170.01500.51240.80570.105*
C180.0464 (5)0.6608 (4)0.7413 (4)0.0758 (13)
H180.01030.66430.68580.091*
C200.2220 (6)0.8062 (5)0.5898 (3)0.0886 (15)
H20A0.31990.77060.61090.133*
H20B0.22340.87610.54570.133*
H20C0.18460.74470.55660.133*
C80.1033 (5)1.1934 (4)0.9126 (3)0.0740 (13)
H8A0.17781.23440.88700.111*
H8B0.14621.12720.95780.111*
H8C0.02851.25220.94620.111*
C120.4331 (5)1.2721 (5)0.8026 (3)0.0826 (14)
H12A0.35291.33480.82680.124*
H12B0.52211.30200.80340.124*
H12C0.44301.19810.84380.124*
C220.5889 (5)0.7379 (4)0.6999 (3)0.0772 (13)
H22A0.54440.67600.67330.116*
H22B0.69370.70960.69780.116*
H22C0.56160.81430.66180.116*
C100.3806 (6)1.3851 (5)0.5994 (4)0.104 (2)
H10A0.36711.37000.53160.157*
H10B0.46861.41560.60530.157*
H10C0.29811.44580.62310.157*
C90.0774 (5)1.0803 (5)0.8704 (3)0.0813 (14)
H9A0.14211.13540.91350.122*
H9B0.03331.00540.90630.122*
H9C0.13211.06020.81700.122*
C230.6216 (5)0.8796 (5)0.8807 (4)0.0860 (15)
H23A0.59680.95670.84320.129*
H23B0.72560.84720.87640.129*
H23C0.59220.89370.94830.129*
C50.2017 (6)1.3948 (4)0.6845 (5)0.0915 (18)
H50.29541.44520.68920.110*
C110.5620 (5)1.1225 (5)0.6282 (4)0.0858 (15)
H11A0.58481.05240.67360.129*
H11B0.64371.16230.62240.129*
H11C0.54241.09460.56500.129*
H130.321 (4)0.850 (3)0.912 (3)0.054 (11)*
H10.248 (4)1.144 (4)0.599 (3)0.064 (13)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd0.04401 (16)0.04002 (16)0.05193 (18)0.01013 (11)0.00366 (11)0.00682 (11)
Si20.0471 (6)0.0523 (6)0.0617 (7)0.0106 (5)0.0102 (5)0.0088 (5)
Si10.0515 (7)0.0571 (7)0.0658 (7)0.0177 (5)0.0040 (5)0.0123 (5)
C130.053 (2)0.0370 (19)0.044 (2)0.0096 (16)0.0077 (17)0.0026 (16)
N10.0472 (18)0.057 (2)0.0527 (19)0.0189 (15)0.0022 (14)0.0037 (15)
C140.049 (2)0.0351 (19)0.053 (2)0.0110 (16)0.0063 (16)0.0040 (16)
C20.060 (2)0.040 (2)0.053 (2)0.0172 (18)0.0162 (18)0.0036 (16)
C30.079 (3)0.052 (2)0.075 (3)0.026 (2)0.027 (2)0.017 (2)
N20.053 (2)0.065 (2)0.054 (2)0.0168 (16)0.0082 (15)0.0029 (16)
C70.039 (2)0.041 (2)0.074 (3)0.0146 (16)0.0096 (18)0.0035 (18)
C10.058 (2)0.051 (2)0.043 (2)0.0147 (18)0.0015 (18)0.0098 (18)
C160.074 (3)0.048 (3)0.104 (4)0.021 (2)0.015 (3)0.011 (2)
C150.058 (3)0.049 (2)0.068 (3)0.0087 (19)0.0056 (19)0.0021 (19)
C190.045 (2)0.046 (2)0.068 (3)0.0129 (17)0.0020 (18)0.0080 (18)
C240.070 (3)0.081 (3)0.104 (4)0.006 (3)0.008 (3)0.034 (3)
C60.045 (2)0.050 (3)0.118 (4)0.008 (2)0.006 (2)0.010 (2)
C210.071 (3)0.091 (4)0.096 (4)0.016 (3)0.031 (3)0.011 (3)
C40.092 (4)0.051 (3)0.119 (4)0.014 (3)0.063 (3)0.022 (3)
C170.072 (3)0.057 (3)0.142 (5)0.035 (3)0.004 (3)0.003 (3)
C180.065 (3)0.066 (3)0.105 (4)0.028 (2)0.015 (3)0.016 (3)
C200.088 (4)0.122 (4)0.062 (3)0.035 (3)0.004 (3)0.018 (3)
C80.070 (3)0.094 (3)0.061 (3)0.024 (3)0.000 (2)0.012 (2)
C120.067 (3)0.096 (4)0.093 (4)0.035 (3)0.002 (3)0.009 (3)
C220.068 (3)0.078 (3)0.080 (3)0.004 (2)0.001 (2)0.006 (2)
C100.093 (4)0.087 (4)0.142 (5)0.045 (3)0.022 (3)0.051 (4)
C90.073 (3)0.090 (4)0.087 (3)0.036 (3)0.012 (2)0.017 (3)
C230.065 (3)0.099 (4)0.102 (4)0.032 (3)0.024 (3)0.003 (3)
C50.056 (3)0.050 (3)0.165 (6)0.001 (2)0.036 (3)0.000 (3)
C110.062 (3)0.098 (4)0.096 (4)0.019 (3)0.028 (2)0.001 (3)
Geometric parameters (Å, º) top
Cd—C12.166 (4)C24—H24C0.9600
Cd—C132.169 (3)C6—C51.365 (7)
Cd—N22.503 (3)C6—H60.9300
Cd—N12.513 (4)C21—H21A0.9600
Si2—C131.866 (4)C21—H21B0.9600
Si2—C231.868 (5)C21—H21C0.9600
Si2—C221.873 (5)C4—C51.369 (8)
Si2—C241.881 (4)C4—H40.9300
Si1—C11.864 (4)C17—C181.373 (6)
Si1—C121.864 (5)C17—H170.9300
Si1—C111.868 (5)C18—H180.9300
Si1—C101.880 (5)C20—H20A0.9600
C13—C141.508 (5)C20—H20B0.9600
C13—H130.94 (4)C20—H20C0.9600
N1—C71.449 (5)C8—H8A0.9600
N1—C91.471 (5)C8—H8B0.9600
N1—C81.472 (5)C8—H8C0.9600
C14—C151.399 (5)C12—H12A0.9600
C14—C191.399 (5)C12—H12B0.9600
C2—C71.397 (5)C12—H12C0.9600
C2—C31.398 (5)C22—H22A0.9600
C2—C11.511 (6)C22—H22B0.9600
C3—C41.391 (7)C22—H22C0.9600
C3—H30.9300C10—H10A0.9600
N2—C191.460 (5)C10—H10B0.9600
N2—C201.468 (5)C10—H10C0.9600
N2—C211.477 (5)C9—H9A0.9600
C7—C61.388 (5)C9—H9B0.9600
C1—H10.89 (4)C9—H9C0.9600
C16—C171.371 (7)C23—H23A0.9600
C16—C151.382 (6)C23—H23B0.9600
C16—H160.9300C23—H23C0.9600
C15—H150.9300C5—H50.9300
C19—C181.387 (5)C11—H11A0.9600
C24—H24A0.9600C11—H11B0.9600
C24—H24B0.9600C11—H11C0.9600
C1—Cd—C13167.32 (14)C5—C6—C7121.7 (5)
C1—Cd—N2109.85 (14)C5—C6—H6119.2
C13—Cd—N278.38 (13)C7—C6—H6119.2
C1—Cd—N177.71 (14)N2—C21—H21A109.5
C13—Cd—N1110.90 (13)N2—C21—H21B109.5
N2—Cd—N1100.60 (11)H21A—C21—H21B109.5
C13—Si2—C23107.6 (2)N2—C21—H21C109.5
C13—Si2—C22114.40 (19)H21A—C21—H21C109.5
C23—Si2—C22107.7 (2)H21B—C21—H21C109.5
C13—Si2—C24113.6 (2)C5—C4—C3120.0 (4)
C23—Si2—C24107.3 (2)C5—C4—H4120.0
C22—Si2—C24106.0 (2)C3—C4—H4120.0
C1—Si1—C12114.8 (2)C16—C17—C18119.4 (4)
C1—Si1—C11107.2 (2)C16—C17—H17120.3
C12—Si1—C11107.4 (2)C18—C17—H17120.3
C1—Si1—C10112.9 (2)C17—C18—C19121.4 (4)
C12—Si1—C10106.3 (3)C17—C18—H18119.3
C11—Si1—C10107.9 (3)C19—C18—H18119.3
C14—C13—Si2116.9 (3)N2—C20—H20A109.5
C14—C13—Cd109.5 (2)N2—C20—H20B109.5
Si2—C13—Cd110.90 (18)H20A—C20—H20B109.5
C14—C13—H13110 (2)N2—C20—H20C109.5
Si2—C13—H1399 (2)H20A—C20—H20C109.5
Cd—C13—H13110 (2)H20B—C20—H20C109.5
C7—N1—C9113.9 (3)N1—C8—H8A109.5
C7—N1—C8112.1 (3)N1—C8—H8B109.5
C9—N1—C8109.4 (3)H8A—C8—H8B109.5
C7—N1—Cd103.5 (2)N1—C8—H8C109.5
C9—N1—Cd114.1 (3)H8A—C8—H8C109.5
C8—N1—Cd103.3 (2)H8B—C8—H8C109.5
C15—C14—C19116.6 (3)Si1—C12—H12A109.5
C15—C14—C13119.0 (3)Si1—C12—H12B109.5
C19—C14—C13124.3 (3)H12A—C12—H12B109.5
C7—C2—C3116.7 (4)Si1—C12—H12C109.5
C7—C2—C1123.7 (3)H12A—C12—H12C109.5
C3—C2—C1119.6 (4)H12B—C12—H12C109.5
C4—C3—C2121.9 (5)Si2—C22—H22A109.5
C4—C3—H3119.1Si2—C22—H22B109.5
C2—C3—H3119.1H22A—C22—H22B109.5
C19—N2—C20112.1 (4)Si2—C22—H22C109.5
C19—N2—C21113.6 (3)H22A—C22—H22C109.5
C20—N2—C21109.0 (3)H22B—C22—H22C109.5
C19—N2—Cd104.0 (2)Si1—C10—H10A109.5
C20—N2—Cd103.4 (3)Si1—C10—H10B109.5
C21—N2—Cd114.2 (3)H10A—C10—H10B109.5
C6—C7—C2120.5 (4)Si1—C10—H10C109.5
C6—C7—N1120.1 (4)H10A—C10—H10C109.5
C2—C7—N1119.5 (3)H10B—C10—H10C109.5
C2—C1—Si1118.9 (3)N1—C9—H9A109.5
C2—C1—Cd109.3 (2)N1—C9—H9B109.5
Si1—C1—Cd111.72 (19)H9A—C9—H9B109.5
C2—C1—H1107 (3)N1—C9—H9C109.5
Si1—C1—H199 (3)H9A—C9—H9C109.5
Cd—C1—H1110 (3)H9B—C9—H9C109.5
C17—C16—C15119.7 (4)Si2—C23—H23A109.5
C17—C16—H16120.2Si2—C23—H23B109.5
C15—C16—H16120.2H23A—C23—H23B109.5
C16—C15—C14122.4 (4)Si2—C23—H23C109.5
C16—C15—H15118.8H23A—C23—H23C109.5
C14—C15—H15118.8H23B—C23—H23C109.5
C18—C19—C14120.4 (4)C6—C5—C4119.2 (5)
C18—C19—N2120.3 (4)C6—C5—H5120.4
C14—C19—N2119.3 (3)C4—C5—H5120.4
Si2—C24—H24A109.5Si1—C11—H11A109.5
Si2—C24—H24B109.5Si1—C11—H11B109.5
H24A—C24—H24B109.5H11A—C11—H11B109.5
Si2—C24—H24C109.5Si1—C11—H11C109.5
H24A—C24—H24C109.5H11A—C11—H11C109.5
H24B—C24—H24C109.5H11B—C11—H11C109.5

Experimental details

Crystal data
Chemical formula[Cd(C12H20NSi)2]
Mr525.16
Crystal system, space groupTriclinic, P1
Temperature (K)230
a, b, c (Å)9.341 (6), 11.011 (5), 13.605 (8)
α, β, γ (°)87.80 (4), 88.31 (3), 77.30 (5)
V3)1363.7 (13)
Z2
Radiation typeMo Kα
µ (mm1)0.90
Crystal size (mm)0.40 × 0.30 × 0.30
Data collection
DiffractometerBruker SMART APEX CCD
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.715, 0.774
No. of measured, independent and
observed [I > 2σ(I)] reflections
5641, 4701, 4067
Rint0.015
(sin θ/λ)max1)0.595
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.041, 0.086, 1.09
No. of reflections4701
No. of parameters280
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.60, 0.24

Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

 

References

First citationSchmidbaur, H., Costa, T. & Milewski-Mahrla, B. (1981). Chem. Ber. 114, 1428-1441.  CrossRef CAS Web of Science Google Scholar
First citationSheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationSiemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.  Google Scholar
First citationTong, H.-B., Li, M., Bai, S.-D., Yuan, S.-F., Chao, J.-B., Huang, S.-P. & Liu, D.-S. (2011). Dalton Trans. 40, 4236–4241.  Web of Science CSD CrossRef CAS PubMed Google Scholar

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