The vibration-rotation emission spectrum of free BeH2

Science. 2002 Aug 23;297(5585):1323-4. doi: 10.1126/science.1074580.

Abstract

The gaseous BeH2 molecule has been synthesized by means of an electrical discharge inside a high-temperature furnace and identified with infrared emission spectroscopy. The antisymmetric stretching mode nu3 has been detected near 2179 reciprocal centimeters. The BeH2 molecule has a linear, symmetric structure with an r0 BeH bond length of 1.333761(2) angstroms.