TY - JOUR

T1 - Real-time investigation into thermal and photo decomposition of ruthenium complexes [Ru(acac)2(tmp-mian)] and [Ru(acac)2(tmp-bian)] in acetonitrile by aerodynamic thermal breakup droplet ionization mass spectrometry

AU - Sheven, Dmitriy G.

AU - Bakaev, Ivan V.

AU - Pervukhin, Viktor V.

N1 - The synthesis of ruthenium complexes was supported by the Russian Science Foundation (grant 21-13-00092 ). This research was supported by the Russian Science Foundation (grant 22-29-01265 ). The authors thank the Ministry of Science and Higher Education of the Russian Federation and the Centre of Collective Usage of NIIC SB RAS for thermal analysis.

PY - 2024/1

Y1 - 2024/1

N2 - Properties and mechanisms of thermal and photo decomposition of ruthenium complexes [Ru(acac)2(tmp-mian)] (1) and [Ru(acac)2(tmp-bian)] (2) [where acac = acetylacetonate, tmp = 2,4,6-{CH3}3C6H2, mian is monoiminoacenaphtheneone, and bian is acenaphthene-1,2-diimine] in acetonitrile were studied in real time by aerodynamic thermal breakup droplet ionization mass spectrometry (ATBDI-MS). A comparison of the ATBDI-MS spectra of complexes 1 and 2 showed a difference between photolysis processes in these structurally similar complexes because the Ru–O– bond in complex 1 is much weaker than the Ru–N[dbnd] bond in complex 2. This difference leads to easier decomposition of complex 1 and facilitates the capture of solvent molecules by products of complex 1′s photolysis. Similarly, the analysis of thermal decomposition of complexes 1 and 2 at increasing temperatures of an ATBDI suction tube (Tsuction) showed that complex 1 is much more susceptible to thermal decomposition and starts to disintegrate already at 100 °C. Complex 2 is much stabler; there was no evidence of its thermal decomposition when Tsuction was raised up to 330 °C.

AB - Properties and mechanisms of thermal and photo decomposition of ruthenium complexes [Ru(acac)2(tmp-mian)] (1) and [Ru(acac)2(tmp-bian)] (2) [where acac = acetylacetonate, tmp = 2,4,6-{CH3}3C6H2, mian is monoiminoacenaphtheneone, and bian is acenaphthene-1,2-diimine] in acetonitrile were studied in real time by aerodynamic thermal breakup droplet ionization mass spectrometry (ATBDI-MS). A comparison of the ATBDI-MS spectra of complexes 1 and 2 showed a difference between photolysis processes in these structurally similar complexes because the Ru–O– bond in complex 1 is much weaker than the Ru–N[dbnd] bond in complex 2. This difference leads to easier decomposition of complex 1 and facilitates the capture of solvent molecules by products of complex 1′s photolysis. Similarly, the analysis of thermal decomposition of complexes 1 and 2 at increasing temperatures of an ATBDI suction tube (Tsuction) showed that complex 1 is much more susceptible to thermal decomposition and starts to disintegrate already at 100 °C. Complex 2 is much stabler; there was no evidence of its thermal decomposition when Tsuction was raised up to 330 °C.

KW - Aerodynamic thermal breakup droplet ionization mass spectrometry

KW - Photo decomposition

KW - Ruthenium complexes

KW - Thermal decomposition

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85176259088&origin=inward&txGid=cc7ae7db5513d0eee6fcdd67253575cd

UR - https://www.mendeley.com/catalogue/cafcfaed-1914-3c8c-b230-9e34e55de6c6/

U2 - 10.1016/j.microc.2023.109637

DO - 10.1016/j.microc.2023.109637

M3 - Article

VL - 196

JO - Microchemical Journal

JF - Microchemical Journal

SN - 0026-265X

M1 - 109637

ER -