Metallacarboranes as an anion and a cation in a single species: A unique example for ion pairs

Inorganic Chemistry Communications

Volumn 6, Issue 5, 2003, Pages 549-552

  Wang, Jianhui ^a,b   Li, Shoujian ^a   Zheng, Chong ^a   Maguire, John A ^b   Hosmane, Narayan S ^a  

^a NORTHERN ILLINOIS UNIVERSITY   (United States)

^b SOUTHERN METHODIST UNIVERSITY   (United States)

Author keywords

Half sandwich; Ion pairs; Lanthanacarborane; Metallacarborane; Neodymacarborane; Sandwich

Indexed keywords

ANION; BENZENE; CARBORANE DERIVATIVE; CATION; NEODYMIUM; SOLVENT;

ARTICLE; CHEMICAL BOND; CHEMICAL REACTION; CRYSTALLIZATION; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; POLYMERIZATION; REACTION ANALYSIS; X RAY DIFFRACTION;

EID: 0037401942     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1387-7003(03)00039-X     Document Type: Article

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25. -1): 2, 2533(s, s), 2510 (s, s), 2467 (s, br), 2442 (br, sh), 2376(s, s)[v(B-H)]; 3, 2523(s, s), 2512(s, s), 2490(s, br), 2466(s, s), 2434(s, br), 2390(s, br) [v(B-H)].
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27. 3 for 2 and 3, respectively. Of the 10 356 and 31 626 reflections collected (2θ = 2.78-50° for 2 and 3.5-50° for 3), 6868 and 20 315 reflections were, respectively, considered as observed [I > 2σ(I)] and were corrected for Lorentz, polarization and absorption effects (Sheldrick, G, M, SADABS, Program for Empirical Absorption Correction of Area Detector Data, University Göttingen, Germany, 1996). The structures were solved by direct methods, and refined by fullmatrix least-squares techniques using SHELXTL (Sheldrick, G.M. SHELXTL, Version 5.1, Bruker Analytical X-ray Systems, Madison, WI, 1997). All non-H atoms were refined anisotropically. The final refinements converged at R1 = 0.0223 and 0.0816, wR2 = 0.0593 and 0.1830, and GOF = 1.157 and 1.386 for 2 and 3, respectively.
28. 3 for 2 and 3, respectively. Of the 10 356 and 31 626 reflections collected (2θ = 2.78-50° for 2 and 3.5-50° for 3), 6868 and 20 315 reflections were, respectively, considered as observed [I > 2σ(I)] and were corrected for Lorentz, polarization and absorption effects (Sheldrick, G, M, SADABS, Program for Empirical Absorption Correction of Area Detector Data, University Göttingen, Germany, 1996). The structures were solved by direct methods, and refined by fullmatrix least-squares techniques using SHELXTL (Sheldrick, G.M. SHELXTL, Version 5.1, Bruker Analytical X-ray Systems, Madison, WI, 1997). All non-H atoms were refined anisotropically. The final refinements converged at R1 = 0.0223 and 0.0816, wR2 = 0.0593 and 0.1830, and GOF = 1.157 and 1.386 for 2 and 3, respectively.
29. J. Wang, S. Li, C. Zheng, J.A. Maguire, N.S. Hosmane, Inorg. Chem. Commun. 5 (2002) 602-605.
30. J. Wang, C. Zheng, J.A. Maguire, N.S. Hosmane, unpublished experimental observations.