TY - JOUR
T1 - Volatile N,N′-dialkyl-β-dialdiminate complexes of magnesium and zinc as possible chemical vapor deposition precursors
AU - Schmit, Claire E.
AU - Girolami, Gregory S.
N1 - We thank the National Science Foundation (CHE 1954745) and the University of Illinois (fellowship for C.E.S.) for support of this research. We thank Dr. Danielle Gray and Dr. Toby Woods of the Clark X-ray Laboratory at the University of Illinois in Urbana-Champaign for collecting the X-ray diffraction data. We thank the SCS NMR Lab for its technical support. The Bruker 500-Mz NMR spectrometer was obtained with the financial support of the Roy J. Carver Charitable Trust, Muscatine, Iowa, USA. The research was carried out in part in the Materials Research Laboratory Central Research Facilities, University of Illinois. CCDC 2328701, 2328702, 2328703, 2328705, and 2328706 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge via http://www.ccdc.cam.ac.uk/conts/retrieving.html, or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; fax: (+44) 1223-336-033; or [email protected]. All authors have given approval to the final version of the manuscript.
We thank the National Science Foundation (CHE 1954745) and the University of Illinois (fellowship for C.E.S.) for support of this research. We thank Dr. Danielle Gray and Dr. Toby Woods of the Clark X-ray Laboratory at the University of Illinois in Urbana-Champaign for collecting the X-ray diffraction data. We thank the SCS NMR Lab for its technical support. The Bruker 500-Mz NMR spectrometer was obtained with the financial support of the Roy J. Carver Charitable Trust, Muscatine, Iowa, USA. The research was carried out in part in the Materials Research Laboratory Central Research Facilities, University of Illinois.
PY - 2024/7/1
Y1 - 2024/7/1
N2 - A series of volatile magnesium(II) and zinc(II) bis(β-dialdiminato) complexes (of stoichiometry M[RN(CH)3NR]2 where R = methyl, ethyl, isopropyl, or tert-butyl) have been prepared and investigated as potential precursors for the chemical vapor deposition of thin films. Several of the compounds have been characterized crystallographically; the metal centers adopt pseudo-tetrahedral geometries with the two ligands forming six-membered rings with the metal center. All eight compounds sublime cleanly both in vacuum and under 1 atm of N2, and the most volatile compounds (those having N-methyl substituents) have vapor pressures of 1 Torr at 88 (Mg) and 90 °C (Zn). In general, metal complexes of N,N′-dialkyl-β-dialdiminate ligands are more volatile than their corresponding N,N′-dialkyl-β-diketiminate and N,N-dialkylamidinate analogues.
AB - A series of volatile magnesium(II) and zinc(II) bis(β-dialdiminato) complexes (of stoichiometry M[RN(CH)3NR]2 where R = methyl, ethyl, isopropyl, or tert-butyl) have been prepared and investigated as potential precursors for the chemical vapor deposition of thin films. Several of the compounds have been characterized crystallographically; the metal centers adopt pseudo-tetrahedral geometries with the two ligands forming six-membered rings with the metal center. All eight compounds sublime cleanly both in vacuum and under 1 atm of N2, and the most volatile compounds (those having N-methyl substituents) have vapor pressures of 1 Torr at 88 (Mg) and 90 °C (Zn). In general, metal complexes of N,N′-dialkyl-β-dialdiminate ligands are more volatile than their corresponding N,N′-dialkyl-β-diketiminate and N,N-dialkylamidinate analogues.
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U2 - 10.1016/j.poly.2024.116985
DO - 10.1016/j.poly.2024.116985
M3 - Article
AN - SCOPUS:85191180064
SN - 0277-5387
VL - 256
JO - Polyhedron
JF - Polyhedron
M1 - 116985
ER -