Read e-book online Allgemeine und Anorganische Chemie. Ein Lehrbuch fur PDF

By Riedel, E.

ISBN-10: 3110089076

ISBN-13: 9783110089073

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Extra resources for Allgemeine und Anorganische Chemie. Ein Lehrbuch fur Studenten mit Nebenfach Chemie 2. Auflage

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Structural analysis of the dipolar contribution to the LIS values and MMX force field calculations gave a square antiprismatic (SAP) arrangement of the ligand and suggested only minor structural changes throughout the Ln series [91]. An X-ray structure of the [Tm(DOTP)]5– complex has been reported [95]. 23Na NMR studies with the [Tm(DOTP)]5– complex revealed two possible binding sites for the Na+ countercations [94, 96]. One site (A), observed at low Na+/[Tm(DOTP)]5– ratios, gave rise to an extremely large 23Na LIS (ª420 ppm), indicating a binding position near the 4-fold symmetry axis.

TTHA . . . . . . . . . . . . 3 Complexes of Tripodal Hydroxypyridinonates . . . . . . . 36 4 Complexes of Cyclen Type Compounds . . . . . . . . . 5 DOTA and Derivatives . . . . . DO3A and Derivatives . . . . . DOTP . . . . . . . . . Phosphinates and Phosphonate Esters Cationic Complexes . . . . . 5 Targeted Contrast Agents . . . . . . . . . . . . . 50 6 Responsive Contrast Agents . . . . . . . . . . . . 52 7 References .

1. Possible ways of wrapping a DTPA derivative around a Ln3+ ion in a TTP coordination polyhedron. Another set of mirror images is possible. For a monocapped square antprism similar structures can be depicted. The shuffle in the coordination polyhedron related to the dd/ll isomerization of the ehtylene bridges is indicated with arrows in isomer 1 30 L. Frullano et al. 2 DTPA-Bisamides Incorporated in Macrocycles Structures 2 In the crystal structures of the La3+ and Eu3+ complexes of Ln(18-DTPA-dien) oligomerization was observed [20].

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Allgemeine und Anorganische Chemie. Ein Lehrbuch fur Studenten mit Nebenfach Chemie 2. Auflage by Riedel, E.


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