Pb —Te bond

UPD process is significantly enhanced by introducing lead into Se [322]. Pb UPD has also been studied on palladium [323], from the point of view of catalytic applications and on tellurium using electrochemical impedance spectroscopy [324]. The latter process has been found irreversible owing to the Pb-Te bonds formation. Periodic multilayer structures in Pb-Se-Te system have been studied using pulse potentio-static methods [325]. 

Pb-Te bonds, 480 Pd-contarning species neutrals, 932-939 Pd clusters, 939-940 Pd clusters, 941 Peroxides, see Hydroperoxides Peroxys ROO and Trioxides ROOD O-Br bonds, 367 O-C bonds... 

S acids RC(0)SH, see Thio-acids Sb-contarnmg compounds Sb-As bonds, 490 Sb-Bi bonds, 490 Sb-C bonds, 489 Sb-H bonds, 489 Sb-halogen bonds, 489 Sb-N bonds, 490 Sb-O bonds, 489 Sb-P bonds, 490 Sb-Pb bonds, 489 Sb-S bonds, 490 Sb-Sb bonds, 489 Sb-Te bonds, 490 Sc-contarnmg species neutrals, 601-603 Sc clusters, 603 -606 Se-containing compounds Se-C bonds, 452 Se-H bonds, 451 Se-halogen bonds, 451 Se-N bonds, 452... 

Se-O bonds, 452 Se-P bonds, 452 Se-S bonds, 452 Se-Se bonds, 451 Se-Te bonds, 452 Selenium clusters/complexes anions, 1346 cations, 1341-1346 neutrals, 1341 Si-containing compounds C-H bonds, 100, 131, 133 C-O bonds, 344 N-C bonds, 418 N-H bonds, 377 O-H bonds, 261, 304 0-0 bonds, 315 Si-Br bonds, 465 Si-C bonds, 460-462 Si-Cl bonds, 464-465 Si-F bonds, 463 -464 Si-Ge bonds, 467 Si-H bonds, 455-459 Si-1 bonds, 465 Si-Mn bonds, 467 Si-N bonds, 463 Si-O bonds, 462-463 Si-P bonds, 466 Si-S bonds, 466 Si-Se bonds, 450,466 Si-Si bonds, 459-460 Si-Sn bonds, 467 Si-Te bonds, 466 Silicon neutral complexes anions, 1153 cations, 1147-1152 neutrals, 1140-1147 Sm-containing species neutrals, 623 -626 Sm clusters, 626 Sn-containing compounds 0-0 bonds, 315 Sn-Br bonds, 475-476 Sn-C bonds, 476-477 Sn-Cl bonds, 475 Sn-F bonds, 475 Sn-Ge bonds, 475 Sn-H bonds, 473-474 Sn-1 bonds, 476 Sn-O bonds, 477 Sn-Pb bonds, 475 Sn-S bonds, 477 Sn-Se bonds, 477 Sn-Si bonds, 467 Sn-Sn bonds, 474-475 Sn-Te bonds, 477 Sr-containing species neutrals, 591-593 Sr+ clusters, 593-595 Sulfates... 

Although some review articles are now available on the synthesis of heavy ketones," they are restricted to dealing with some selected elements, especially silicon and germanium. We delineate here a more general account of the whole chemistry of stable double bonds between heavier Group 14 and Group 16 elements [i.e., RR M=X (M = Si, Ge, Sn, Pb X = O, S, Se, Te)]. 

The successful synthesis and isolation of a series of heavy ketones (r r2M = X M = Si, Ge, Sn, Pb X = S, Se, Te) using kinetic stabilization (vide infra) and the remarkable progress in the field of theoretical calculations prompted chemists to perform computational calculations on the a and it bond energies as well as on the single and double bond lengths of H2M=X at the higher level of theory.14... 

This interpretation of the experimental results was corroborated by ab initio calculations on the relative stabilities of a series of double bond compounds, [H2Pb=X] and their plumbylene type isomers, [frans-H-Pb-X-H] and [ciT-H-Pb-X-H] (X = O, S, Se, and Te) (vide supra) 6 The results of the theoretical calculations and experiments for lead-chalcogen double bond species are in sharp contrast to those of the other Group 14 element analogues which do not isomerize to the divalent compounds.14b... 

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