US PATENT SUBCLASS 556 / 97-- .~.~.~.~.~ Preparing by interchange of radicals between heavy metal atoms (e.g., redistribution, disproportionation, etc.)

US PATENT SUBCLASS 556 / 97
.~.~.~.~.~ Preparing by interchange of radicals between heavy metal atoms (e.g., redistribution, disproportionation, etc.)

Current as of: June, 1999
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556 /	HD	ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*	DD	ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
1	DF	.~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19}
81	DF	.~.~ Germanium, tin, or lead containing (Ge, Sn, or Pb) {6}
87	DF	.~.~.~ Carbon bonded directly to the metal {2}
95	DF	.~.~.~.~ The compound consists of the metal, carbon and hydrogen or the metal, carbon, hydrogen and halogen (e.g., tetraalkylleads, etc.) {6}
97		.~.~.~.~.~ Preparing by interchange of radicals between heavy metal atoms (e.g., redistribution, disproportionation, etc.)

DEFINITION

Classification: 556/97

(under subclass 95) Processes wherein the compound is prepared by an interchange of radicals between the heavy metal atoms, i.e., a shift of a radical, unchanged, from one heavy metal atom to another heavy metal atom.

(1) Note. Included in this subclass are the processes of redistribution, disproportionation, etc., e.g., [figure] [figure]

(2) Note. This interchange may occur when plural molecules of the same heavy metal compound are acted upon in such a manner as to produce two different heavy metal compounds via molecular redistribution.