A primer for nuclear magnetic relaxation in liquids

This article is a primer that is intended to serve as a concise source of information for researchers interested in learning relaxation aspects in NMR. Explicit expressions have been derived for the equation of motion of nuclear spins in the solution state. General expressions valid for all motional regimes, including anisotropy of spin interactions and molecular motions, are presented. intricate details that impact the validity of various expressions have been elaborated and efforts have been made to maintain consistent notation. The suitable examples given here should help in the understanding of the concepts developed in the theory. (C) 2003 Wiley Periodicals, Inc.