Literature DB >> 29711615

Direct NMR Spectroscopic Observation of a Lanthanide-Coordinated Water Molecule whose Exchange Rate Is Dependent on the Conformation of the Complexes.

Silvio Aime1, Alessandro Barge1, Mauro Botta1, Alvaro S De Sousa2, David Parker2.   

Abstract

A large difference in the exchange rate of the coordinated water molecule is seen in solution for the diastereoisomers M and m of a europium(III) complex with an octadentate, neutral macrocyclic ligand (kex (M)<kex (m)). This finding is of high relevance to the design of more efficient contrast agents for magnetic resonance imaging. © 1998 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.

Entities:  

Keywords:  Lanthanides; Macrocyclic ligands; NMR spectroscopy; Water exchange

Year:  1998        PMID： 29711615     DOI： 10.1002/(SICI)1521-3773(19981016)37:19<2673::AID-ANIE2673>3.0.CO;2-#

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


  10 in total

1.  The pH sensitivity of -NH exchange in LnDOTA-tetraamide complexes varies with amide substituent.

Authors:  Ana Christina L Opina; Yunkou Wu; Piyu Zhao; Garry Kiefer; A Dean Sherry
Journal:  Contrast Media Mol Imaging       Date:  2011 Nov-Dec       Impact factor: 3.161

Review 2.  Lanthanide probes for bioresponsive imaging.

Authors:  Marie C Heffern; Lauren M Matosziuk; Thomas J Meade
Journal:  Chem Rev       Date:  2013-12-13       Impact factor: 60.622

3.  A Frequency-Selective pH-Responsive paraCEST Agent.

Authors:  S James Ratnakar; Sara Chirayil; Alexander M Funk; Shanrong Zhang; João F Queiró; Carlos F G C Geraldes; Zoltan Kovacs; A Dean Sherry
Journal:  Angew Chem Int Ed Engl       Date:  2020-10-06       Impact factor: 15.336

4.  Spectroscopic Characterization of the 3+ and 2+ Oxidation States of Europium in a Macrocyclic Tetraglycinate Complex.

Authors:  Levi A Ekanger; Devin R Mills; Meser M Ali; Lisa A Polin; Yimin Shen; E Mark Haacke; Matthew J Allen
Journal:  Inorg Chem       Date:  2016-05-31       Impact factor: 5.165

5.  Investigations into whole water, prototropic and amide proton exchange in lanthanide(III) DOTA-tetraamide chelates.

Authors:  Mark Woods; Azhar Pasha; Piyu Zhao; Gyula Tircso; Somdatta Chowdhury; Garry Kiefer; Donald E Woessner; A Dean Sherry
Journal:  Dalton Trans       Date:  2011-05-31       Impact factor: 4.390

6.  Modulating water-exchange rates of lanthanide(III)-containing polyaminopolycarboxylate-type complexes using polyethylene glycol.

Authors:  Buddhima N Siriwardena-Mahanama; Matthew J Allen
Journal:  Dalton Trans       Date:  2013-05-21       Impact factor: 4.390

7.  Correlation of Solid State and Solution Coordination Numbers with Infrared Spectroscopy in Five-, Six-, and Eight-Coordinate Transition Metal Complexes of DOTAM.

Authors:  Maika K C T Nagata; Paul S Brauchle; Sen Wang; Sarah K Briggs; Young Soo Hong; Daniel W Laorenza; Andrea G Lee; T David Westmoreland
Journal:  Polyhedron       Date:  2016-08-16       Impact factor: 3.052

8.  Analysis of the Relaxometric Properties of Extremely Rapidly Exchanging Gd3+ Chelates: Lessons from a Comparison of Four Isomeric Chelates.

Authors:  Benjamin C Webber; Katherine M Payne; Lauren N Rust; Claudio Cassino; Fabio Carniato; Theresa McCormick; Mauro Botta; Mark Woods
Journal:  Inorg Chem       Date:  2020-06-14       Impact factor: 5.165

9.  Fluorinated EuII-based multimodal contrast agent for temperature- and redox-responsive magnetic resonance imaging.

Authors:  Lina A Basal; Matthew D Bailey; Jonathan Romero; Meser M Ali; Lyazat Kurenbekova; Jason Yustein; Robia G Pautler; Matthew J Allen
Journal:  Chem Sci       Date:  2017-10-26       Impact factor: 9.825

Review 10.  Strategies for optimizing water-exchange rates of lanthanide-based contrast agents for magnetic resonance imaging.

Authors:  Buddhima N Siriwardena-Mahanama; Matthew J Allen
Journal:  Molecules       Date:  2013-08-05       Impact factor: 4.411
  10 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.