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Title: Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS

Abstract

Targeted radionuclide therapy generally relies on the chelation of select short-lived isotopes such as Lu-177 and Cu-67. The majority of Lu(III) and Cu(II) chelate structural information is derived from solid state diffraction data. Herein, the complexes Lu(DOTA)(-), Cu(NOTA)(-) were examined in solution using EXAFS for the first time. Both ligands were fully deprotonated and coordinated to the metal with four and three carboxylic sites for Lu (DOTA)(-) and Cu(NOTA)(-), respectively. Near-neighbor correlations from nitrogen atoms on the macrocyclic cages were also visible in the spectra in addition to the adjacent carbon backbones. Coordination numbers, bond distances, and Debye-Waller factors are reported and discussed alongside differences with known crystal structures.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Argonne National Laboratory
OSTI Identifier:
1477458
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Inorganica Chimica Acta
Additional Journal Information:
Journal Volume: 482; Journal Issue: C; Journal ID: ISSN 0020-1693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
DOTA; EXAFS; NOTA; Radionuclide therapy; copper; lutetium

Citation Formats

Alex Brown, M., Brossard, Thomas, and Rotsch, David A. Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS. United States: N. p., 2018. Web. doi:10.1016/j.ica.2018.05.031.
Alex Brown, M., Brossard, Thomas, & Rotsch, David A. Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS. United States. doi:10.1016/j.ica.2018.05.031.
Alex Brown, M., Brossard, Thomas, and Rotsch, David A. Mon . "Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS". United States. doi:10.1016/j.ica.2018.05.031. https://www.osti.gov/servlets/purl/1477458.
@article{osti_1477458,
title = {Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS},
author = {Alex Brown, M. and Brossard, Thomas and Rotsch, David A.},
abstractNote = {Targeted radionuclide therapy generally relies on the chelation of select short-lived isotopes such as Lu-177 and Cu-67. The majority of Lu(III) and Cu(II) chelate structural information is derived from solid state diffraction data. Herein, the complexes Lu(DOTA)(-), Cu(NOTA)(-) were examined in solution using EXAFS for the first time. Both ligands were fully deprotonated and coordinated to the metal with four and three carboxylic sites for Lu (DOTA)(-) and Cu(NOTA)(-), respectively. Near-neighbor correlations from nitrogen atoms on the macrocyclic cages were also visible in the spectra in addition to the adjacent carbon backbones. Coordination numbers, bond distances, and Debye-Waller factors are reported and discussed alongside differences with known crystal structures.},
doi = {10.1016/j.ica.2018.05.031},
journal = {Inorganica Chimica Acta},
number = C,
volume = 482,
place = {United States},
year = {2018},
month = {10}
}

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