93402-49-4Relevant academic research and scientific papers
Two Unusual closo-type Ruthenaboranes: Preparation, Molecular Structure, and Nuclear Magnetic Resonance Properties of and
Crook, Janet E.,Elrington, Margaret,Greenwood, Norman N.,Kennedy, John D.,Thornton-Pett, Mark,Woollins, J. Derek
, p. 2407 - 2416 (2007/10/02)
Reaction of arachno-- with under mild conditions gives the orange 10-vertex ruthenadecaborane in ca. 40percent yield.The molecular structure is based on an 'isocloso' C3v 1:3:3:3 RuB9 stack with the nine-co-ordinate metal occupying the unique six-connected apical position.The electronic structure may be interpreted either on the basis of a 'PSEPT-deficient' 2n-electron cluster with the metal having a straightforward 'conical' three-orbital contribution, or as a 'PSEPT-precise' (2n+2)-electron cluster with the metal having a four-orbital involvement, also conical, with the cluster.Similar bonding considerations apply to the red 11-vertex ruthenaundecaborane which is obtained in a yield of 80percent from the reaction of with closo-2- in refluxing ethanolic chloroform.The molecular structure is based on that of a closo-type C2v 1:2:4:2:2 RuB10 stack again with the metal occupying the unique six-connected apical position.Both compounds can be considered as having 'isocloso' structures derived from the complete capping of the open face of an arachno geometry to give a completely closed deltahedral cluster.
