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

Alex Brown, M.; Brossard, Thomas; Rotsch, David A.

doi:10.1016/j.ica.2018.05.031

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

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Abstract

Targeted radionuclide therapy generally relies on the chelation of select short-lived isotopes such as ¹⁷⁷Lu and ⁶⁷Cu. 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:

Alex Brown, M. ^[1]; Brossard, Thomas ^[1]; Rotsch, David A. ^[1]

Argonne National Lab. (ANL), Lemont, IL (United States). Nuclear Engineering Division

Publication Date:: 2018-10-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1477458

Alternate Identifier(s):: OSTI ID: 1601298

Grant/Contract Number:: AC02-06CH11357; DEAC02-06CH11357

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:: 62 RADIOLOGY AND NUCLEAR MEDICINE; 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.

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                    Alex Brown, M., Brossard, Thomas, & Rotsch, David A. Examination of lutetium(III)-DOTA and copper(II)-NOTA solution structures using EXAFS.  United States.  https://doi.org/10.1016/j.ica.2018.05.031

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                    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.  https://doi.org/10.1016/j.ica.2018.05.031.  https://www.osti.gov/servlets/purl/1477458.

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@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 177Lu and 67Cu. 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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