Synthesis and structural evaluation of organo-ruthenium complexes with ß-diketonates

Matija Uršič (Avtor), Tanja Lipec (Avtor), Anton Meden (Avtor), Iztok Turel (Avtor)

Povzetek

Four novel ruthenium organometallic complexes: [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-bromophenyl)-1,3-butanedione)Cl] (1), [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-bromophenyl)-1,3-butanedione)pta]PF$_6$ (2), [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-iodophenyl)-1,3-butanedione)Cl] (3) and [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-iodophenyl)-1,3-butanedione)pta]PF$_6$ (4) were synthesized and characterized by elemental analysis, infrared (IR), UV-Vis, NMR and mass spectroscopy and single-crystal X-ray diffraction. The crystal structures and spectroscopic data were compared to the previously published complexes [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-chloro-phenyl)-1,3-butanedione)Cl] (5) and [(η$^6$-p-cymene)Ru(4,4,4-trifluoro-1-(4-chlorophenyl)-1,3-butanedione)pta]PF$_6$ (6). The pairs of complexes 1 and 3 as well as 2 and 4 are isostructural, with the former crystallizing in triclinic P-1 and the latter in monoclinic P2$_1$/c. The ruthenium(II) ion is found in a pseudo-octahedral “piano-stool” geometry in all compounds. Bond lengths and angles are consistent with other complexes of this type. Complexes 2 and 4 exhibit some moderate dynamic disorder. The lack of hydrogen bonding and major π-π interactions means that most of intramolecular interactions are fairly weak and involve halogen atoms present. This was further confirmed by $^1$H-NMR spectra, where a significant difference is observed only on the ligand near the halogen atom, following an expected trend. The combined data show that the difference in any activity depends substantially on the type of the ligand′s substituted halogen atom.

Ključne besede

organorutenijevi kompleksi;ß-diketonatni ligandi;halogenski substituenti;1,3,5-triazafosfoadamantan (pta) ligand;nered;organoruthenium complexes;ß-diketonate ligands;halogen substituents;1,3,5-triazaphosphoadamantane (pta) ligand;disorder;

Podatki

Jezik:	Angleški jezik
Leto izida:	2017
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK:	546.96:547-316
COBISS:	1537371075
ISSN:	1420-3049
Št. ogledov:	157
Št. prenosov:	57
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	organorutenijevi kompleksi;ß-diketonatni ligandi;halogenski substituenti;1;3;5-triazafosfoadamantan (pta) ligand;nered;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-12
Letnik:	ǂVol. ǂ22
Zvezek:	ǂiss. ǂ2
Čas izdaje:	2017
DOI:	10.3390/molecules22020326
ID:	13534216