Details

Autor(en) / Beteiligte

• Mikhailov, Artem A.
• Kostin, Gennadiy A.
• Schaniel, Dominik

Titel

The influence of the trans -ligand to NO on the thermal stability of the photoinduced side-bond coordinated linkage isomer

Ist Teil von

• New journal of chemistry, 2022-07, Vol.46 (26), p.12641-12650

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The influence of the trans -to-NO ligand (X) on the thermal stability of the transient side-on coordinated nitrosyl linkage isomer (MS2) is investigated in a series of trans -[RuNOPy 4 X](PF 6 ) 2 (X = F − (RuF), Cl − (RuCl), Br − (RuBr) and OH − (RuOH)) compounds. Based on differential scanning calorimetry (DSC) and IR-spectroscopy investigations, activation energies ( E a ) and frequency factors ( k 0 ) are determined for MS1 → GS and MS2 → GS reactions. Calculated decay temperatures ( T d ) of both processes correlate with Mulliken electronegativities of X and Hirshfeld charges of the (RuNO) unit, and the increase in the electronegativity of X or in the positive charge on the (RuNO) group leads to an increase in the thermal stability of the MS2 isomer with almost linear dependence. Since the MS2 isomer is a transient state in MS1 isomer formation or the NO release reaction, the obtained correlation can be used for the design of compounds with higher quantum yields of these processes.