Preparation and crystal structure of dimeric diphenylantimony oxide bromide (Ph2SbBrO)2

Organometallic Oxides of Main Group and Transition Elements Downsizing Inorganic Solids to Small Molecular Fragments

“…A recently characterized related compound, [(2-PhOC 6 H 4 OC 6 H 4 )Ph 2 Sb] 2 O, shows the same pattern with axial Sb−O = 2.060 Å, equatorial Sb−O = 1.943 Å, O−Sb−O = 78.2°, and Sb−O−Sb 101.8° . The structure of [Ph 2 BrSbO] 2 exhibits the bromine and oxygen occupying the axial positions of the distorted trigonal-bipyramid with the Sb−O (axial) and Sb−O (equatorial) distances of 2.04 and 1.93 Å, respectively 15 …”

Diphenylantimony(V) oxide halides and thiocyanate; the crystal structures of dimeric diphenylantimony(V) bromide oxide and tetrameric diphenylantimony(V) oxide fluoride and thiocyanate

“…It is therefore probable that cyclic dimers analogous to those in the bromide are formed initially and reaction mechanisms in the two cases are similar. 8) 0.562 9(9) 0.520 3 ( 9 ) 0.554 3 (7) fluoride bridges between two dimeric [SbPh,O(X)], units and it is assumed that, as bridging is less effective with chloride and bromide, these compounds are stable as simple dimers. As both groups in the thiocyanate product are N-bonded, bridging is considered to involve nitrogen only.…”