期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1203, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2019.127377
关键词
DFT; Molecular orbitals; Ruthenium (II) complex; Benzimidazole; Anti-Bacterial studies; Atomic force microscopy
资金
- Direccion General de Asuntos del Personal Academico (Project PAPIIT) [222419]
Complex [Ru(II)(LClP)-Cl-1(Ph-3)]Cl (L-1 = N,N'-bis(benzimidazol-2-yl ethyl)ethylenediamine) was prepared, and characterized completely by different analytical methods, and its photochemical behavior was studied under visible light. P-31 NMR results showed that a light assisted structural transformation in the complex occurred. The formation of different ruthenium complexes was also recorded by LC-MS: [Ru(II) L-1 DMSO)](2+) (m/z = 563, RT = 19.9 min); [Ru(II)(LDMSO)-D-1(H2O)](2+) (m/z = 581, RT = 15.69 min); [Ru(II)(LDMSO)-D-1(H2O) (MeOH)](2+) (m/z = 611, RT = 17.0 min); Ph2P(Cl) = O (m/z = 242, RT = 13.3 min). Theoretical study was used to interpret the structural change. The change of electron density rho(r) (dipole moment changes from 4.77 to 8.85 D) was observed in benzimidazole group in the excited state, altering the structural parameters of the complex. Furthermore, antibacterial study performed for the complex shows a high toxicity with bacterial cell even at low concentrations (50 mu L, 0.5 mM). This is consistent with low cell growth factor with [Ru(II)(LClP)-Cl-1(Ph-3)]Cl, established by Atomic Force Microscopy (AFM). (C) 2019 Elsevier B.V. All rights reserved.
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