Synthesis and Crystal Structures of Two exo‐Cyclic 11‐Vertex isocloso Ruthenaborane Clusters [(PPh3)(p‐ClPhCO2)2RuB10H8] and [(PPh3)2Ru(PPh3)(p‐ClPhCO2)RuB10H9]·0.5C5H12·H2O

Guo, Qingliang; Dou, Jianmin; Wu, Libin; Li, Dacheng; Wang, Daqi; Wang, Huaisheng

doi:10.1002/zaac.200600085

Cited by 4 publications

(1 citation statement)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of them obey Wade’s rule and some do not. Although 11-vertex boron-rich clusters of Re, Ru, Co, and Rh, for example, [(Cp*Re) 2 B 9 H 9 ], [2,3-(Me) 2 -1-(η 6 -MeC 6 H 4 i Pr)- closo -1,2,3-RuC 2 B 8 H 8 ], [(PMe 3 )(PPh 3 )(OEt 2 )RuB 10 H 8 ], and [8,8,8-(PMe 3 ) 3 - nido -8,7-RhSB 9 H 10 ], are known, cluster 8 is the first iridaborane to be recognized with 11-vertex isocloso geometry. Note that [(Cp*Re) 2 B 9 H 9 ] ( I ) has a six-connected planar boron ring, whereas in [(Cp*M) 3 (μ-H)B 8 H 8 ], II and III (M = Mo, W), , the metal atoms are connected to the B 7 unit.…”

Section: Resultsmentioning

confidence: 99%

Hypoelectronic 8–11-Vertex Irida- and Rhodaboranes

et al. 2016

View full text Add to dashboard Cite

A series of novel isocloso-diiridaboranes [(Cp*Ir)2B6H6], 1, 2; [1,7-(Cp*Ir)2B8H8], 4; [1,4-(Cp*Ir)2B8H8], 5; [(Cp*Ir)2B9H9], 8; isonido-[(Cp*Ir)2B7H7], 3; and 10-vertex cluster [5,7-(Cp*Ir)2B8H12], 6 (Cp* = η(5)-C5Me5) have been isolated and structurally characterized from the pyrolysis of [Cp*IrCl2]2 and BH3·thf. On the other hand, the corresponding rhodium system afforded 10- and 11-vertices clusters [5-(Cp*Rh)B9H13)], 7, and [(Cp*Rh)2B9H9], 9, respectively. Clusters 1 and 2 are topological isomers. The geometry of 1 is dodecahedral, similar to that of its parent borane [B8H8](2-), in which two of the [BH] vertices are replaced by two [Cp*Ir] fragments. The geometry of 2 can be derived from a nine-vertex tricapped trigonal prism by removing one of the capped vertices. Compounds 4 and 5 are 10-vertex isocloso clusters based on a 10-vertex bicapped square antiprism structure. The only difference between them is the presence of a metal-metal bond in 5. The solid-state structures of 8 and 9 attain an 11-vertex geometry in which a unique six-membered B6H6 moiety is bonded to the metal center. In addition, quantum-chemical calculations have been used to provide further insight into the electronic structure and stability of the clusters. All the compounds have been characterized by IR and (1)H, (11)B, and (13)C NMR spectroscopy in solution, and the solid-state structures were established by X-ray crystallographic analysis.

show abstract