Revisiting the coordination chemistry of molybdenum(V) : novel complexes with pyrazinoate and picolinate ligands

Modec, Barbara (author), Podjed Rihtaršič, Nina (author)

Reactions of (pyH)$_5$[MoOCl$_4$(H$_2$O)]$_3$Cl$_2$ with picolinic and pyrazinoic acids yielded three new dinuclear molybdenum(V) complexes: (pyH)$_2$[Mo$_2$O$_4$Cl$_2$(pic)$_2$]·CH$_3$CN (1), (pyH)$_2$[Mo$_2$O$_4$Cl$_2$(pic)$_2$]·CH$_3$CH$_2$CN (2) and (pyH)$_2$[Mo$_2$O$_4$Cl$_2$(pyraz)$_2$]·CH$_3$CN (3) (pic$^−$ = picolinate, pyraz$^−$ = pyrazinoate and pyH$^+$ = protonated pyridine). The compounds were characterized by single-crystal X-ray diffraction, infrared and $^1$H NMR spectroscopy, elemental analysis, and TG/DSC measurements. All display a robust {Mo$^V_2$O$_4$}$^{2+}$ core with the heteroaromatic ligands bound in a N,O-bidentate chelating manner.

• Language: English
• Keywords: molybdenum(V), picolinate, pyrazinoate, crystal structure
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 9 str.
• Numbering: Vol. 2025, iss. 4, art. M2079
• PID: 20.500.12556/RUL-175444
• UDC: 546.775:547.86
• ISSN on article: 1422-8599
• DOI: 10.3390/M2079
• COBISS.SI-ID: 254991107
• Publication date in RUL: 28.10.2025

Record is a part of a journal

• Title: Molbank
• Shortened title: Molbank
• Publisher: MDPI
• ISSN: 1422-8599
• COBISS.SI-ID: 515861017

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: molibden(V), pikolinat, pirazinoat, kristalne strukture

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P1-0134-2022
• Name: Kemija za trajnostni razvoj

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: I0-0022-2022
• Name: Mreža raziskovalnih infrastrukturnih centrov Univerze v Ljubljani (MRIC UL)