UNSPECIFIED (2005) Multiple-magnetic field La-139 NMR and density functional theory investigation of the solid lanthanum(III) halides. SOLID STATE NUCLEAR MAGNETIC RESONANCE, 28 (2-4). pp. 125-134. doi:10.1016/j.ssniur.2005.07.002 ISSN 0926-2040.

Research output not available from this repository.

Request-a-Copy directly from author or use local Library Get it For Me service.

Request Changes to record.

Abstract

Results from a solid-state La-139 NMR spectroscopic investigation of the anhydrous lanthanum(III) halides (LaX3; X = F, Cl, Br, 1) at applied magnetic fields of 7.0, 9.4, 11.7, 14. 1, and 17.6 T are presented and highlight the advantages of working at high applied magnetic field strengths. The La-139 quadrupolar coupling constants are found to range from 15.55 to 24.0 MHz for LaCl3 and Lab, respectively. The lanthanum isotropic chemical shifts exhibit an inverse halogen dependence with values ranging from -135 ppm for LaF3 to 700ppm for Lab, which represents nearly half of the total lanthanum chemical shift range. The spans of the magnetic shielding tensors also vary widely, from 35 to 650 ppm for the solid LaF3 through LaI3. DIFT calculations of the 139La electric field gradient and magnetic shielding tensors have been performed and provide a qualitative interpretation of the trends observed experimentally. (c) 2005 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	SOLID STATE NUCLEAR MAGNETIC RESONANCE
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
ISSN:	0926-2040
Official Date:	September 2005
Dates:	Date Event September 2005 UNSPECIFIED
Volume:	28
Number:	2-4
Number of Pages:	10
Page Range:	pp. 125-134
DOI:	10.1016/j.ssniur.2005.07.002
Publication Status:	Published

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item