Structure of two polymorphs of bis-trifluoroacetylacetonato-(N,N,N′N′-tetramethylethylenediamine)magnesium

E. S. Vikulova, K. V. Zherikova, D. A. Piryazev, I. V. Korol’kov, N. B. Morozova, I. K. Igumenov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The structures of two polymorphs [Mg(tmeda)(tfac)2] (tmeda = N,N,N′N′-tetramethylethylenediamine, tfac = trifluoroacetylacetonate anion) are studied by single crystal XRD. The crystallographic data are as follows: for the α-modification, space group P21/c, a = 8.0874(4) Å, b = 20.2826(11) Å, c = 12.8759(7) Å, β = 90.6350(1)°, V = 2111.5(19) Å3, Z = 4, R = 0.0583; for the β-modification, space group C2/c, a = 8.8698(4) Å, b = 13.3441(8) Å, c = 18.1189(11) Å, β = 92.280(2)°, V = 2142.8(2) Å3, Z = 4, R = 0.0537. Both structures are composed of monomeric complex molecules; the magnesium coordination environment is a distorted octahedron; tfac ligands are in the trans-position. The interatomic distances and bond angles are identical in the molecules; the packing motif is the only distinction between the two polymorphs.

Original languageEnglish
Pages (from-to)1681-1684
Number of pages4
JournalJournal of Structural Chemistry
Volume58
Issue number8
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • diamines
  • magnesium
  • MOCVD precursor
  • single crystal X-ray diffraction analysis
  • β-diketonates
  • COMPLEXES
  • MAGNESIUM
  • HIGHLY VOLATILE
  • VAPOR-PRESSURE
  • THERMAL-PROPERTIES
  • MOCVD PRECURSORS
  • THIN-FILM GROWTH
  • beta-diketonates

Fingerprint

Dive into the research topics of 'Structure of two polymorphs of bis-trifluoroacetylacetonato-(N,N,N′N′-tetramethylethylenediamine)magnesium'. Together they form a unique fingerprint.

Cite this