Abstract
ABSTRACTTwo novel trinuclear Hg(II) complexes, namely, [Hg3Cl6(L1)2] (1) and [Hg3Cl6(L2)2] (2), (L1 = trans-4-[(p-N,N-dimethylamino)styryl]-N-acetic-acidpyridinium, L2 = trans-4-[(p-N-2-hydroxyethyl-N-methylamino)styryl]-N-acetic-acid pyridinium) have been synthesized and characterized by IR spectroscopy, elemental analysis, and X-ray single-crystal diffraction. In both 1 and 2, the tri- and tetra-coordinated Hg(II) atoms are linked by the carboxyl groups, resulting in the formation of trinuclear structures. Their linear absorption, one-photon fluorescence, two-photon fluorescence, and two-photon pumped up-conversion lasing are investigated. Upon pumped by 1064 nm laser beam, complexes 1 and 2 exhibit excellent two-photon lasing at ∼627 nm.
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