The
coordination bond formed upon interaction between molecular species, one of which serves as a
donor and the other as an acceptor of the electron pair to be shared in the complex
formed,
e.g, the
N
B
bond in
H3NBH3. In spite of the analogy of dative bonds with covalent bonds, in that both types
imply sharing a common electron pair between two vicinal atoms, the former are distinguished
by their significant
polarity, lesser strength, and greater length. The distinctive feature of dative bonds is
that their minimum-energy rupture in the gas phase or in
inert solvent follows the heterolytic bond cleavage path.
Source:
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
