[η5-2,3-Bis(trimethylsilyl)-2,3-dicarba-nido-hexaborane(2−)]chlorido(N,N,N′,N′-tetramethylethylenediamine)dysprosium(III)

Zheng, C.; Canseco-Melchor, G.; Maguire, J.A.; Hosmane, N.S.

doi:10.1107/S1600536808013615

Volume 64
Part 6
Page m799
June 2008

Received 26 March 2008
Accepted 7 May 2008
Online 10 May 2008

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.005 Å
R = 0.024
wR = 0.051
Data-to-parameter ratio = 18.0
Details

[⁵-2,3-Bis(trimethylsilyl)-2,3-dicarba-nido-hexaborane(2-)]chlorido(N,N,N',N'-tetramethylethylenediamine)dysprosium(III)

Chong Zheng,^a ^* Graciela Canseco-Melchor,^a John A. Maguire ^b and Narayan S. Hosmane ^a

^aDepartment of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA, and ^bDepartment of Chemistry, Southern Methodist University, Dallas, TX 75275, USA
Correspondence e-mail: zheng@cz.chem.niu.edu

The structure of the title compound, [Dy(C₈H₂₂B₄Si₂)Cl(C₆H₁₆N₂)], reveals that a center of symmetry exists within the dimeric half-sandwich units. Within each half-sandwich, the Dy^III ion is coordinated by the five-membered ring of the carborane, tetramethylethylenediamine and the chloride ion.

Related literature

For related literature, see: Bazan et al. (1993); Tomlinson et al. (2005); Wang et al. (2006).

Experimental

Crystal data

[Dy(C₈H₂₂B₄Si₂)Cl(C₆H₁₆N₂)]
M_r = 531.84
Monoclinic, P 2₁ /n
a = 11.4467 (8) Å
b = 14.862 (1) Å
c = 13.8615 (9) Å
= 92.770 (1)°
V = 2355.4 (3) Å³
Z = 4
Mo K radiation
= 3.39 mm^-1
T = 293 (2) K
0.80 × 0.30 × 0.30 mm

Data collection

Bruker SMART CCD PLATFORM diffractometer
Absorption correction: multi-scan SADABS (Sheldrick, 2006) T_min = 0.257, T_max = 0.362
17271 measured reflections
4151 independent reflections
4142 reflections with I > 2(I)
R_int = 0.019

Refinement

R[F² > 2(F²)] = 0.024
wR(F²) = 0.050
S = 1.44
4151 reflections
231 parameters
H atoms treated by a mixture of independent and constrained refinement
_max = 0.64 e Å^-3
_min = -0.61 e Å^-3

Data collection: SMART (Bruker, 2003); cell refinement: SMART and SAINT (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SI2081 ).

Acknowledgements

This work was supported by Northern Illinois University and by grants from the donors of the Petroleum Research Fund, administered by the American Chemical Society, and the National Science Foundation. JAM thanks the Robert A. Welch Foundation (grant N-1322).

References

Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115-119.
Bazan, G. C., Schaefer, W. P. & Bercaw, J. E. (1993). Organometallics, 12, 2126-2130.
Bruker (2003). SMART and SAINT. Bruker Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.
Sheldrick, G. M. (2006). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Tomlinson, S., Zheng, C., Hosmane, N. S., Yang, J., Wang, Y., Zhang, H., Gray, T. G., Demissie, T., Maguire, J. A., Baumann, F., Klein, A., Sarkar, B., Kaim, W. & Lipscomb, W. N. (2005). Organometallics 24, 2177-2187.
Wang, J., Smith, J., Zheng, C., Maguire, J. A. & Hosmane, N. S. (2006). Organometallics, 25, 4118-4130.

metal-organic compounds

[5-2,3-Bis(trimethylsilyl)-2,3-dicarba-nido-hexaborane(2-)]chlorido(N,N,N',N'-tetramethylethylenediamine)dysprosium(III)