Organotin clusters. 4. Cubic, butterfly, and oxygen-capped clusters of n-butyloxotin phosphinates. A new class of organotin compounds

Organotin compounds containing four‐membered distannoxane [Sn(µ‐OH)]2 units

“…Thus, in the reaction with (C 6 H 11 ) 2 P(O)OH, the distannoxane unit is supported by two bridging phosphinate ligands in an A-frame-type structure. 55 Additional phosphinic acids are also held together by hydrogen bonding interactions. The product isolated with t-Bu 2 P(O)OH is more complex ( Table 1, entry 51).…”

Unprecedented Hexa- and Undecanuclear Frameworks of Two New Tin(IV) Oxo Clusters Resulting from Partial Debenzylation Reactions

“…1 H and 13 C chemical shifts (δ , ppm) were determined from the residual solvent signal (CHCl 3 δ = 7.24, CDCl 3 δ = 77.00). 119 Sn{ 1 H} and 19 F chemical shifts (δ , ppm) are reported downfield from (CH 3 ) 4 Sn and trifluoromethylbenzene, respectively, used as internal standards. IR spectra were recorded on a Bruker Vector 22 instrument with a Specac Golden Gate TM ATR device.…”

“…Brought to you by | MIT Libraries Authenticated Download Date | 5/9/18 6:55 PM Molecular structure of {Sn(µ-OH) 6 [(C 7 H 7 Sn) 10 -(µ 4 …”

“…Since then, the inventory of structures has regularly been updated; it reveals a profuse structural diversity [2]. Indeed, on the basis of X-ray crystallographic studies, a great variety of shapes has already been identified for organotin-oxo derivatives which include prismane [3], butterfly [4], ladder [5], O-and Scapped cluster [6], drum [7], cube [8], double cube [9], football cage [10], crown [11], extended cage [12], and coordination polymer types [13]. Moreover, the structural interrelationship between these polynuclear arrangements has been clearly established, highlighting possible mechanisms of interconversion from one form to another [14].…”

A discrete unsymmetrically substituted dihydrodioxadistannetane with both η1 and intramolecular η2μ2 sulfonate bondings

“…Then, a few examples where the tin atoms are substituted by one [2][3][4][5][6][7][8] or two [9][10][11][12][13][14][15][16][17][18] organic groups have been structurally characterized. They belong to a class of organotins that are of importance due to their structural properties as well as for their useful applications in the field of catalysis.…”