ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM

**Definition:** This place covers:

Pure organic compounds containing one or more of the elements B, Ge, Si, P, As, Sb and their preparation.

Pure organic compounds containing one or more metals whereby at least one metal is carbon bound, and their preparation.

Pure organic compounds containing one or more metals, without metal-carbon bonds, that can be represented by the formula: (L1)n-Metal-(L2)m (n>0 and m>0); L1 and L2 are different metal-bound moieties, and their preparation.

Zirconates and titanates, and their preparation.

In the absence of any indication to the contrary, classification is done in the last appropriate place.

**Limiting references (this place does not cover):** - Inorganic compounds -> C01B - Inorganic phosphorus compounds -> C01B25/00 - Inorganic silicon compounds -> C01B33/00 - Metal-containing compounds that can be represented by the formula: Metal(L)n. These compounds are classified as the parent compounds L -> C07C , C07D , C07J , C07H , C07K - Alcoholates (except titanates and zirconates) -> C07C31/28 , C07C31/30 , C07C31/32 - Phenates -> C07C39/235 - C07C39/44 - Metal-containing porphyrins -> C07D487/22 - Compounds that are considered a sugar -> C07H - Sugar phosphates -> C07H11/04 - Nucleotides -> C07H19/00 - Nucleic acids -> C07H21/00 - Metal-containing sugars -> C07H23/00 - Compounds that are considered a steroid -> C07J - Compounds that are considered a peptide -> C07K - Compounds that are considered an organic macromolecular compound -> C08 - Polysiloxanes -> C08G77/00 - Polysilanes -> C08G77/60

**Glossary:** - Chelate: chemical compound consisting of a central metal atom attached by coordinate bonds to at least two non-metal atoms of a molecule, called a ligand, in a cyclic or ring structure - Metal-bound moiety: NOT: -H 2 O, -CN - Metallocene: chemical compound containing a metal attached to at least one cyclopentadienyl or cyclopentadienyl-derivative - Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens - Metals: elements other than non-metals - Metalloids: B, Si, Ge, As, Sb