US PATENT SUBCLASS 556 / 113
.~.~.~ Chalcogen bonded directly to the metal

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}
110  DF  .~.~ Copper, silver, or gold containing (Cu, Ag, or Au) {3}
113.~.~.~ Chalcogen bonded directly to the metal {2}
114  DF  .~.~.~.~> The chalcogen is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens {2}
117  DF  .~.~.~.~> Containing -C(=X)-, wherein X is chalcogen

DEFINITION

Classification: 556/113

(under subclass 110) Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to the metal.