US PATENT SUBCLASS 556 / 43
.~.~.~ Carbon bonded directly to the metal (e.g., cyclopentadienyl vanadium tetracarbonyl, 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}
42  DF  .~.~ Vanadium, niobium, or tantalum containing (V, Nb, or Ta) {2}
43.~.~.~ Carbon bonded directly to the metal (e.g., cyclopentadienyl vanadium tetracarbonyl, etc.)

DEFINITION

Classification: 556/43

(under subclass 42) Compounds wherein carbon is bonded directly to the metal.

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