US PATENT SUBCLASS 546 / 88
.~.~.~.~.~.~.~ Phenanthrolines (including hydrogenated)

Current as of: June, 1999
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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}
26  DF  .~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {9}
79  DF  .~.~.~.~ Tricyclo ring system having the six-membered hetero ring as one of the cyclos {7}
80  DF  .~.~.~.~.~ Plural ring hetero atoms in the tricyclo ring system {2}
81  DF  .~.~.~.~.~.~ Plural ring nitrogens in the tricyclo ring system {3}
88.~.~.~.~.~.~.~ Phenanthrolines (including hydrogenated)

DEFINITION

Classification: 546/88

Phenanthrolines (including hydrogenated):

(under subclass 81) Compounds wherein the tricyclo ring system consists of three six-membered rings forming the phenanthrene configuration in which two ring carbons have been replaced by ring nitrogens; said ring system may contain double bonds between ring members.

(1) Note. The phenanthroline ring system can be represented by any one of the following basic structures: [figure] [figure]

(2) Note. An example of a compound provided for herein is: [figure]