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Pregled bibliografske jedinice broj: 1127541

Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties


Androš Dubraja, Lidija; Žilić, Dijana; Olujić, Kristina; Pavić, Luka; Molčanov, Krešimir; Pajić, Damir
Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties // New journal of chemistry, 45 (2021), 6336-6343 doi:10.1039/D1NJ00430A (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1127541 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties

Autori
Androš Dubraja, Lidija ; Žilić, Dijana ; Olujić, Kristina ; Pavić, Luka ; Molčanov, Krešimir ; Pajić, Damir

Izvornik
New journal of chemistry (1144-0546) 45 (2021); 6336-6343

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
oxo-bridge ; chromium(III) ; vanadium(V) ; metal-to-metal charge transfer

Sažetak
The synthesis and the structural, spectroscopic, thermal, magnetic and electrical properties of a new heterodinuclear [Cr(bpy)2(H2O)(μ-O)V(C2O4)2]2·9H2O (1) complex, which contains terminal and unsupported oxo- bridge CrIII–O–VV, isolated for the first time in a molecular compound, are reported. Oxo- bridged metal units as functional intramolecular motifs exhibit interesting properties in complexes, and the discovery of new combinations of metals with different electronic configurations and redox potentials is important for the design of new materials. The reaction for the preparation of 1, involving an aqueous solution of CrIII precursor [Cr(bpy)2(H2O)2]3+ cations and VV precursor [VO2(C2O4)2]3− anions, was monitored by UV/vis spectroscopy. New absorbance bands in the 400–600 nm region can be recognized in the electronic spectrum of 1 that could originate from metal-to-metal charge transfer (MMCT). The assignment of MMCT was further supported by ATR spectroscopy under visible light irradiation. Upon exposure to visible light, a change in the intensities and positions of the absorptions bands related to vibrations of the oxo-bridged Cr–O–V moiety is observed. X-band ESR spectroscopy and magnetic susceptibility measurements point to paramagnetic behaviour of 1. The electrical response of complex 1 was studied by impedance measurements over a temperature range of −90 to 50 °C, revealing its semiconducting nature and the absence of a dielectric anomaly.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
HRZZ-UIP-2019-04-7433 - Metal-organski molekulski materijali kao potencijalni feroelektrici (MOLFERR) (Androš Dubraja, Lidija, HRZZ - 2019-04) ( POIROT)
HRZZ-IP-2018-01-3168 - Studija važnosti spinskih međudjelovanja kao osnova za nove pristupe u istraživanju materijala (SPES) (Ilakovac-Kveder, Marina, HRZZ - 2018-01) ( POIROT)
EK-EFRR-KK.01.1.1.02.0013 - Centar za Napredna Istraživanja Kompleksnih Sustava (CeNIKS) (Grbić, Mihael Srđan; Tafra, Emil, EK - KK.01.1.1.02) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Citiraj ovu publikaciju

Androš Dubraja, Lidija; Žilić, Dijana; Olujić, Kristina; Pavić, Luka; Molčanov, Krešimir; Pajić, Damir
Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties // New journal of chemistry, 45 (2021), 6336-6343 doi:10.1039/D1NJ00430A (međunarodna recenzija, članak, znanstveni)
Androš Dubraja, L., Žilić, D., Olujić, K., Pavić, L., Molčanov, K. & Pajić, D. (2021) Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties. New journal of chemistry, 45, 6336-6343 doi:10.1039/D1NJ00430A.
@article{article, year = {2021}, pages = {6336-6343}, DOI = {10.1039/D1NJ00430A}, keywords = {oxo-bridge, chromium(III), vanadium(V), metal-to-metal charge transfer}, journal = {New journal of chemistry}, doi = {10.1039/D1NJ00430A}, volume = {45}, issn = {1144-0546}, title = {Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties}, keyword = {oxo-bridge, chromium(III), vanadium(V), metal-to-metal charge transfer} }
@article{article, year = {2021}, pages = {6336-6343}, DOI = {10.1039/D1NJ00430A}, keywords = {oxo-bridge, chromium(III), vanadium(V), metal-to-metal charge transfer}, journal = {New journal of chemistry}, doi = {10.1039/D1NJ00430A}, volume = {45}, issn = {1144-0546}, title = {Targeted synthesis of a CrIII–O–VV core oxo- bridged complex: spectroscopic, magnetic and electrical properties}, keyword = {oxo-bridge, chromium(III), vanadium(V), metal-to-metal charge transfer} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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