Structures and thermal properties of silver(i) β-diketonates with bulky terminal substituents

S. A. Gulyaev, E. S. Vikulova, T. S. Sukhikh, I. Yu Ilyin, N. B. Morozova

Research output: Contribution to journalArticlepeer-review

Abstract

Silver β-diketonates [Ag(RC(O)CHC(O)R′)] with bulky terminal substituents are synthesized and characterized: R = C(OCH3)(CH3)2, R′ = CF3 (1), R = R′ = C(CH3)3 (2). Complex 1 is obtained for the first time. Structures of compounds are determined by single crystal X-ray diffraction. For complex 1 the crystallographic data are: space group P1, a = 5.8012(6) Å, b = 9.1717(10) Å, c = 9.9251(11) Å, α = 73.722(4)°, β = 78.377(4)°, γ = 87.336(4)°, V = 496.49(9) Å3, Z = 2, dcalc = 2.134 g/cm3, μ = 2.059 mm–1; for complex 2: space group C2, a = 22.1700(6) Å, b = 5.84530(10) Å, c = 9.3249(2) Å, β = 104.9670(10)°, V = 1167.42(5) Å3, Z = 4, dcalc = 1.656 g/cm3, μ = 1.701 mm–1. Both compounds are chain coordination polymers. Anions are coordinated in a bidentate-cyclic fashion. One of carbonyl oxygen atoms and the carbon atom in the CH-group perform the bridging function. In complex 2, the coordination environment of silver is a distorted vacant trigonal bipyramid (CN = 4). In complex 1, it is a tetragonal pyramid due to the additional coordination of the methoxy oxygen atom of the neighboring anion (CN = 5). The structure and thermal stability of the synthesized complexes are compared with those of the closest analogue (R = C(CH3)3, R′ = CF3), which allowed us to reveal the effect of terminal substituents in the β-diketonate ligand.

Translated title of the contributionСтроение и термические свойства β-дикетонатов серебра(I) с объемными терминальными заместителями
Original languageEnglish
Article number3
Pages (from-to)1836-1845
Number of pages10
JournalJournal of Structural Chemistry
Volume62
Issue number12
DOIs
Publication statusPublished - Dec 2021

Keywords

  • coordination polymer
  • silver
  • single crystal X-ray diffraction analysis
  • thermal analysis
  • β-diketonate

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.04 CHEMICAL SCIENCES

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