US PATENT SUBCLASS 546 / 5
.~.~.~.~ The metal is bonded directly to chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, which group is attached directly or indirectly to the six-membered hetero ring by nonionic bonding

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546 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
2  DF  .~.~.~ Heavy metal or aluminum containing {8}
5.~.~.~.~ The metal is bonded directly to chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, which group is attached directly or indirectly to the six-membered hetero ring by nonionic bonding

DEFINITION

Classification: 546/5

The metal is bonded directly to chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, which group is attached directly or indirectly to the six-membered hetero ring by nonionic bonding:

(under subclass 2) Compounds wherein the metal is bonded directly to the singly bonded chalcogen of a group, in which the X's are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium), which group is additionally attached directly or indirectly to the six-membered hetero ring by nonionic bonding.

(1) Note. These compounds are usually referred to as "salts".

(2) Note. Examples of compounds provided for herein are: [figure] [figure]