Supramolecular diversity in metal–organic hybrids with [VO$_2$(2,6-pydc)]$^–$ anion and piperazine and its derivatives : research data underlying the article

Hozjan, Mišel (author), Perdih, Franc (author)

Ten compounds have been prepared among them six different diox-ido(pyridine-2,6-dicarboxylato)vanadate(V) compounds with piperazinium (H$_2$pip$^{2+}$) (1·6H$_2$O), methylpiperazinium (H$_2$mepip$^{2+}$) (2·5H$_2$O), ethylpiperazinium (H$_2$etpip$^{2+}$) (3·3H$_2$O), isopropylpiperazinium (H$_2$isopip$^{2+}$) (4·H$_2$O), phenylpiperazinium (Hphepip$^+$) (5∙H$_2$O) and thiomorpholinium 1-oxide (HtmorO$^+$) (6·2,6-H$_2$pydc·2H$_2$O) cations as counterions as well as methylpiperazinium (H$_2$mepip$^{2+}$) salt of a mixed valence vanadium [VO(2,6-pydc)-(μ-O)-VO(H$_2$O)(2,6-pydc)]⁻ complex (7), thiomorpholin-4-ium vanadate (Htmor)VO$_3$ (8), hexa(thiomorpholin-4-ium) decavanadate hexahydrate (Htmor)$_6$[V$_{10}$O$_{28}$]·6H$_2$O (9·6H$_2$O) and organic salt cocrystal thiomorpholin-4-ium 6-carboxypicolinate pyridine-2,6-dicarboxylic acid (Htmor)$^+$(2,6-Hpydc)$^–$∙(2,6-H$_2$pydc)·2H$_2$O (10·2H$_2$O) via different pathways starting either from pyri-dine-2,6-dicarboxylic acid or its esters, and were structurally characterized by sin-gle-crystal X-ray diffraction. Extended hydrogen bonding interactions are present due to the presence of organic cations as well as due to diverse roles of water molecules in the hydrogen bonding network. Centrosymmetric hydrogen bonding was found to be an im-portant motif, and diverse supramolecular patterns were observed also due to rich variety of C–H···O and π···π interactions stabilizing the crystal lattices.

• Language: English
• Keywords: vanadium, metal complexes, supramolecular interactions, crystal structure
• Typology: 2.20 - Complete scientific database of research data
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2026
• PID: 20.500.12556/RUL-181767
• COBISS.SI-ID: 278103299
• Data col. methods: Measurements and tests

Note

Connected article/Povezan članek: Mišel Hozjan and Franc Perdih. Supramolecular diversity in metal-organic hybrids with [VO2(2,6-pydc)]− anion and piperazine and its derivatives. Symmetry, vol. 18, 679, 19 Apr. 2026, str. 1-21. https://doi.org/10.3390/sym18040679.

• Publication date in RUL: 15.04.2026

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: vanadij, kovinski kompleksi, supramolekularne interakcije, kristalna struktura

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P1-0175
• Name: Napredna anorganska kemija