Chen, Xiang’s team published research in Organometallics in 1993-05-31 | 112-63-0

Organometallics published new progress about Crystal structure. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Chen, Xiang; Ohdoi, Keisuke; Yamamoto, Yohsuke; Akiba, Kinya published the artcile< Synthesis, halogenolysis, and crystal structure of hypervalent organobismuth compounds (10-Bi-5)>, Reference of 112-63-0, the main research area is halogenolysis hypervalent organobismuth; bismuth organo hypervalent crystal structure; mol structure hypervalent organobismuth; bismuthane structure.

The stable 10-Bi-5 compounds [o-C6H4C(CF3)2O]BiAr2R [3 (Ar, R): 3a, p-CH3C6H4, p-CH3C6H4; 3b, p-CF3C6H4, p-CF3C6H4; 3c, p-FC6H4, p-FC6H4; 3d, p-CH3C6H4, p-CF3C6H4; 3e, p-CF3C6H4, p-CH3C6H4; 3f, p-CH3C6H4, PhC椤氬æŒ? 3g, p-CH3C6H4, Me] were synthesized. The x-ray structures of 3a, f, g showed distorted trigonal-bipyramidal geometries, and the electroneg. apical PhC椤氬æŒ?ligand of 3f made the apical Bi-O bond (2.243(3) é‘? shorter than the Bi-O bond of 3a, g (2.323(4) é‘?in 3a and 2.328(7) é‘?in 3g). Halogenolysis of 3 with sulfuryl chloride or pyridinium bromide perbromide gave the five-coordinate bismuth compounds [o-C6H4C(CF3)2O]BiAr1Ar2X [6 (Ar1, Ar2, X): 6a, p-CH3C6H4, p-CH3C6H4, Cl; 6b, p-CF3C6H4, p-CF3C6H4, Cl; 6c, p-FC6H4, p-FC6H4, Cl; 6d, p-CH3C6H4, p-CH3C6H4, Br; 6e, p-CH3C6H4, p-CF3C6H4, Cl; 6f; p-CH3C6H4, p-CF3C6H4, Br] in good to quant. yield with apical covalent Bi-halogen bonds which were clearly shown by the X-ray anal. of 6a, b, d, e. The reactivity order of 3 for the halogenolysis was as follows: PhC椤氬挵Bi > MeBi > p-CH3C6H4Bi > p-CF3C6H4Bi. Direct halogenolysis was as follows: PhC椤氬挵Bi > MeBi > p-CH3C6H4Bi > p-CF3C6H4Bi. Direct halogenolysis of the bismuth-carbon bond was suggested. The variable-temperature 19F NMR of unsym. substituted 6e, f did not show coalescence of the CF3 groups up to 170 鎺矯 in a dilute solution of toluene-d8, and the energies of inversion at the bismuth atom should be higher than 21 kcal mol-1 at 170 鎺矯.

Organometallics published new progress about Crystal structure. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics