High-field rotational Zeeman effect studies of MODR transitions in the ground state of fluorocarbene, HCF

Microwave optical double resonance (MODR) was used to determine the rotational g-factors and magnetisability anisotropies Dj of the HCF molecule in a superconducting magnet. The values are gaa ¼ 211:424ð50Þ; gbb þ gcc ¼ 20:3733ð84Þ; gbb 2 gcc ¼ 20:0869ð12Þ; 2jaa 2jbb 2jcc ¼ 2:37ð17Þ MHz=T2; and jbb 2jcc ¼ 0:128ð8Þ MHz=T2 where the errors mean two standard deviations. q 2003 Elsevier B.V. All rights reserved.