RT Journal Article
T1 Green phosphorescent Zn(II) halide complexes with N,N,N′,N′‐tetramethyl‐P‐indol‐1‐ylphosphonic diamide as ligand
A1 Ferraro, Valentina
A1 Baggio, Filippo
A1 Castro Fojo, Jesús Antonio
A1 Bortoluzzi, Marco
K1 2303.18 Metales
AB Tetrahedral Zn(II) complexes having general formula [ZnX2{O=P(NMe2)2Ind}2] (X= Cl, Br, I, NCS) were isolated from the reaction between the indol-1-yl substituted phosphoramide N,N,N',N'-tetramethyl-P-indol-1-ylphosphonic diamide (O=P(NMe2)2Ind) and anhydrous Zn(II) precursors under mild conditions. The structures of the three halide derivatives were ascertained by single-crystal X-ray diffraction. The bromo- and iodo-derivatives revealed to be appreciably luminescent in the green region upon excitation with light below 300 nm, with emission bands centred between 520 and 530 nm. The large Stokes shifts and the excited state lifetimes in the milliseconds range indicate that triplet excited states are involved in the emission. TD-DFT calculations indicated that the transition responsible of the luminescence is ligand-centred (3LC).
PB European Journal of Inorganic Chemistry
SN 14341948
YR 2022
FD 2022-05-09
LK http://hdl.handle.net/11093/5456
UL http://hdl.handle.net/11093/5456
LA eng
NO European Journal of Inorganic Chemistry, 2022(16): 1-19 (2022)
DS Investigo
RD 21-sep-2024