Steric control of lanthanide hydration state: fast water exchange at gadolinium in a mono-amide 'DOTA' complex

Dalton Transactions : an International Journal of Inorganic Chemistry
Aileen CongreveMauro Botta

Abstract

Detailed analyses of the solution structure and exchange dynamics of two sets of homologous mono-amide triacetate lanthanide complexes (Ln = Eu, Gd) of cyclen have been undertaken. The complex [LnL1], bearing an N-linked CH2CH2NHCO-pyridyl moiety, forms mono-aqua (q = 1) species in solution and the Gd complex undergoes rapid water exchange (k(ex)= 11 x 10(7) s(-1), 298 K) as a result of the steric destabilisation of the Ln-water binding interaction. The homologous complex with a C-3 spacing chain, [LnL2], forms a q = 0 species.

References

Jan 4, 2003·Chemical Communications : Chem Comm·Robert RuloffAndré E Merbach
Sep 10, 2004·Dalton Transactions : an International Journal of Inorganic Chemistry·Rachel S DickinsStefania Salamano

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Citations

Aug 4, 2012·ACS Chemical Neuroscience·Anurag MishraSantiago Canals
Sep 18, 2007·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Kirti DhingraEva Tóth
Aug 8, 2013·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Buddhima N Siriwardena-Mahanama, Matthew J Allen
Oct 16, 2015·Journal of the American Chemical Society·Jing YuA Dean Sherry
Oct 16, 2015·Inorganic Chemistry·Martín Regueiro-FigueroaCarlos Platas-Iglesias
Jun 30, 2015·Chemistry : a European Journal·Fatima OukhatarÉva Tóth
Jun 14, 2006·Chemistry : a European Journal·Jérôme CostaAndré E Merbach
Oct 31, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Lars LiepoldMark Young
Jun 4, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Petr HermannIvan Lukes
Nov 4, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Lorenzo TeiMauro Botta
Nov 29, 2005·Dalton Transactions : an International Journal of Inorganic Chemistry·Mark WoodsA Dean Sherry
Oct 9, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Benjamin C Webber, Mark Woods
Nov 20, 2016·Chemistry : a European Journal·Aurora Rodríguez-RodríguezCarlos Platas-Iglesias
Apr 16, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Buddhima N Siriwardena-Mahanama, Matthew J Allen
Jun 27, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Peter CaravanCarlos Platas-Iglesias
Jan 27, 2011·Chemistry : a European Journal·Anurag MishraDavid Parker
Jun 9, 2005·Chemical Reviews·Lothar Helm, André E Merbach
May 1, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sophie LaineÉva Tóth
Dec 17, 2014·ACS Chemical Neuroscience·Fatima OukhatarÉva Tóth

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