101152-15-2Relevant academic research and scientific papers
Polyhedral Ruthenaborane Chemistry: Characterization of Several New Ruthenaboranes by Nuclear Magnetic Resonance Spectroscopy, and the Crystal and Molecular Structure of
Greenwood, Norman N.,Kennedy, John D.,Thornton-Pett, Mark,Woollins, J. Derek
, p. 2397 - 2406 (1985)
Several new polyhedral ruthenaborane clusters have been synthesized, sometimes in high yield, by the reaction of borane anions with a variety of ruthenium(II) complexes such as , , , and .Thus arachno-- yielded the colourless four-vertex ruthenaborane arachno- (1), whereas nido-- yielded the pale yellow five-vertex cluster nido- (2) and the six-vertex cluster nido- (3).An interesting series of 6-ruthena-nido-decaboranes was also synthesized: arachno-- (and, less effectively, deprotonated nido- B10H14) yielded orange nido- (4) and light yellow nido- (5), whilst nido-- afforded amber-red crystals of nido- (6).Structures have been assigned on the basis of detailed 1H, 11B, and 31P n.m.r. studies and comparison with iron, osmium, and iridium analogues where these are known.The structure of (6) was confirmed by a single-crystal X-ray diffraction study; the monoclinic crystals contained 0.25CH2Cl2 as solvent of crystallization =1263.2(5), b=1786.2(3), c=2692.8(9) pm, β=95.09(3)deg, U=6.256 nm3, space group P21/c, and Z=4>.All thirteen H atoms on the cluster were located and freely refined with individual isotropic thermal parameters.
