Issue 20, 2005
From the journal:

Dalton Transactions

The uranium–nitrogen bond in U(iv) complexes supported by the hydrotris(3,5-dimethylpyrazolyl)borate ligand

Manuela Silva,a   Maria Augusta Antunes,a   Marta Dias,a   Ângela Domingos,a   Isabel Cordeiro dos Santos,a   Joaquim Marçaloa  and  Noémia Marques*a  

* Corresponding authors

a Departamento de Química, Instituto Tecnológico e Nuclear, Estrada Nacional 10, Sacavém, Portugal
E-mail: nmarques@itn.mces.pt

Abstract

Insertion of benzonitrile and acetonitrile into the U–C bond of [U(TpMe2)Cl2(CH2SiMe3)] (TpMe2 = HB(3,5-Me2pz)3) gives the ketimide complexes [U(TpMe2)Cl2{NC(R)(CH2SiMe3)}] (R = Ph (1); Me (2)). The identity of complex 1 was ascertained by a single-crystal X-ray diffraction study. In the solid state 1 exhibits octahedral geometry with a short U–N bond length to the ketimide ligand. We also report herein the synthesis and the X-ray crystal structures of the uranium amide complexes [U(TpMe2)Cl2(NR2)] (R = Et (3); Ph (4)). A detailed comparison of the U–N bond lengths in these compounds with other known U–N (and Th–N) distances in amide and ketimide actinide(IV) complexes is performed, confirming the short character of the U–N bond length in 1.

Graphical abstract: The uranium–nitrogen bond in U(iv) complexes supported by the hydrotris(3,5-dimethylpyrazolyl)borate ligand

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Article information

DOI
https://doi.org/10.1039/B509229A
Article type
Paper
Submitted
29 Jun 2005
Accepted
19 Aug 2005
First published
01 Sep 2005

Dalton Trans., 2005, 3353-3358

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The uranium–nitrogen bond in U(IV) complexes supported by the hydrotris(3,5-dimethylpyrazolyl)borate ligand

M. Silva, M. A. Antunes, M. Dias, Â. Domingos, I. Cordeiro dos Santos, J. Marçalo and N. Marques, Dalton Trans., 2005, 3353 DOI: 10.1039/B509229A

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