A @L03518@ attached to two or more, usually metallic, central atoms.
Sources: Blue Book, p. 338 [
Terms] [
Book]
PAC, 1994,
66, 1077. (
Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1091 [
Terms] [
Paper]
Red Book, 3
rd ed., p. 149 [
Terms] [
Book]