Metal atom synthesis of metallaboron clusters. 7. Synthesis and structural characterization of an open-cage metallathiaborane cluster having a triple-decker structure: 4,6-(.eta.-C5H5)2Co2-3,5-S2B2H2

Abstract

On the other hand, the four-atom framework in the (111) fee crystal plane can be regarded as a "flat" butterfly. The proposed structure of the acetylene adsorbed on it resembles that of complex I (Figure 8), and, actually, the loss peaks corresponding to v(C-C) have been found at 1215 cm"1 for Ni(lll) faces28 and at 1307 cm'1 for Cu(lll) faces.25 Acknowledgment. This work was supported by C.N.R. Grant no. 82.00716.95 Progetto Finalizzato "Chimica Fine e Secondaria". We thank Profs. S.F.A. Kettle and N. Sheppard (University of East Anglia, Norwich) for fruitful discussions.

Synthesis and Structural Characterization of New Divanada‐ and Diniobaboranes Containing Chalcogen Atoms

“…[10] The non-bonded distance between the S1 and S2 atoms of 3.258 is similar to the analogous sulfur-rich cluster (NH 4 ) 2 [(S 2 ) 2 Mo(S 2 ) 2 ]·2 H 2 O [18] and the average B-S distance is comparable to that in [(CpCo) 2 B 2 S 2 H 2 ]. [19,20,21] The average V-S distance of 2.343 in compound 2 is similar to…”

Chemistry of Triple‐Decker Sandwich Complexes Containing Four‐Membered Open B2E2 Rings (E = S or Se)

“…Recently, we have also reported various triple‐decker compounds [(Cp*Mo) 2 {µ‐η 6 :η 6 ‐B 4 H 4 ERu(CO) 3 }] from the reaction of [(Cp*Mo) 2 B 4 H 6 E] (E = S and Se) and [Ru 3 (CO) 12 ] . Synthesis of [(CpCo) 2 B 2 H 2 S 2 ] by Sneddon and our recent studies on [(Cp*Co) 2 B 2 H 2 E 2 ] ( 1 : E = S; 2 : E: Se), led us to explore the chemistry of heavier group 9 metals. Thus, analogous rhodium and iridium systems became of interest.…”

Direct insertion of sulfur, selenium and tellurium atoms into metallaborane cages using chalcogen powders

“…Most of the polyhedral metallaheteroborane compounds have been synthesized from the reaction of metal center with preformed polyhedral heteroborane substrates [26][27][28][29][30][31][32][33][34][35]. On the other hand, the converse synthetic approach, that is, the reaction of hetero atom with pre-formed polyhedral metallaborane substrates, is not well documented [36][37][38][39][40].…”