Sigma-borane coordinated to nickel(0) and some related nickel(II) trihydride complexes.
The reactions of the complexes [(dcype)NiH]2, 1, [(dippe)NiH]2, 2, and [(dtbpe)NiH]2, 3, with a mixture of BEt3 and Super-Hydride (LiHBEt3) afforded sigma-borane nickel(0) compounds of the type [(dcype)Ni(sigma-HBEt2)], 4, [(dippe)Ni(sigma-HBEt2)], 5, [(dtbpe)Ni(sigma-HBEt2)], 6, respectively, with the concomitant formation in each case of [(dcype)2Ni2)(H)3][BEt4], 7, [(dippe)2Ni2(H)3][BEt4], 8 and [(dtbpe)2Ni2(H)3][BEt4], 9, respectively. X-ray crystal structures are reported for 4 and 8. The reaction of BEt3 and LiHBEt3 was also reviewed in detail.
Crestani
Marco G
MG
Facultad de Química, Universidad Nacional Autónoma de México, México, D. F. 04510, México, and Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Morelos 62210, México.
Muñoz-Hernández
Miguel
M
Arévalo
Alma
A
Acosta-Ramírez
Alberto
A
García
Juventino J
JJ