MOLECULAR FIRST HYPERPOLARIZABILITY OF PUSH-PULL POLYENES - RELATIONSHIP BETWEEN ELECTRONIC AND VIBRATIONAL CONTRIBUTION BY A TWO-STATE MODEL - COMMENT

摘要

Castiglioni, Del Zoppo, and Zerbi [Phys:. Rev. B 53, 13 319 (1996)] have developed a theory that attempts to demonstrate the equality (or near equality) of electronic and vibrational first hyperpolarizabilities in push-pull polyenes. In this Comment we draw attention to a serious flaw in their argument. [References: 8]