Описание: This book describes the luminescence mechanism of polynuclear lanthanide complexes, focusing on energy transfer processes using a combination of experimental and theoretical approaches.Lanthanide complexes show intense luminescence from the lanthanide ion through sensitization by the organic ligands. The high chromaticity of the emission and the long lifetimes of the complexes are particularly attractive for applications such as organic light-emitting diodes and bioprobes. Polynuclear lanthanide complexes (coordination polymers and clusters) have attracted considerable interest for functionalization by energy transfer between lanthanide ions. At the same time, such extra processes complicate the luminescence mechanism, hindering the rational design of functional polynuclear lanthanide complexes.Firstly, the book explains the principle of the theoretical methods, and then describes the concentration-quenching mechanism in coordination polymers. It also examines the effect of intrinsic spin–orbit coupling arising from lanthanide ions on the ligand-to-lanthanide energy transfer efficiency and the mechanism of back energy transfer (the opposite of sensitizing energy transfer) in lanthanide clusters. This sets the stage for the final topic: the suppression of back energy transfer by energy transfer between lanthanide ions in lanthanide clusters, which is of critical importance, showing that the lanthanide clusters can be considered a new generation of functional and efficient luminescent material and could also provide a breakthrough in lanthanide photophysics.
Описание: This thesis provides essential information on the systematic design of assembled lanthanide complexes for functional luminescent materials. It discusses the relationships between assembled structures and photo, thermal, and mechanical properties on the basis of crystallography, spectroscopy, and thermodynamics. The described guidelines for assembled structures will be extremely valuable, both for industrial applications and for readers’ fundamental understanding of solid-state photophysics and materials chemistry. Luminescent lanthanide complexes are promising candidates for lighting devices, lasers, and bio-probes owing to their line-like and long-lived emission arising from characteristic 4f–4f transitions. Low-vibrational and asymmetrical coordination structures around lanthanide ions have been introduced to achieve strong luminescence, using specific organic ligands. Recently, assembled lanthanide complexes including coordination polymers and metal organic frameworks have increasingly attracted attention as a new class of luminescent materials offering thermal stability and color tunability. However, improving the luminescence efficiencies of these compounds remains a challenge, and specific molecular designs to control assembled structures and yield additional physical properties have not been established. The author provides a group of bent-angled bridging ligands to boost photoluminescence efficiency, and successfully introduces for the first time glass formability and strong triboluminescence properties.
Автор: Jinkui Tang; Peng Zhang Название: Lanthanide Single Molecule Magnets ISBN: 3662469987 ISBN-13(EAN): 9783662469989 Издательство: Springer Рейтинг: Цена: 11179.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book begins by providing basic information on single-molecule magnets (SMMs), covering the magnetism of lanthanide, the characterization and relaxation dynamics of SMMs and advanced means of studying lanthanide SMMs.
Описание: Offers an overview on results of a novel imaging modality based on magnetic nanoparticles.
Автор: Nicholas J. Darton, Adrian Ionescu, Justin Llandro Название: Magnetic Nanoparticles in Biosensing and Medicine ISBN: 1107031095 ISBN-13(EAN): 9781107031098 Издательство: Cambridge Academ Рейтинг: Цена: 21226.00 р. Наличие на складе: Поставка под заказ.
Описание: Drawing together topics from a wide range of disciplines, and featuring up-to-date examples of clinical usage and research applications, this text provides a comprehensive insight into the fundamentals of magnetic biosensors and the applications of magnetic nanoparticles in medicine.
Описание: This thesis deals with strongly luminescent lanthanide complexes having novel coordination structures. In this thesis, the luminescent properties of lanthanide complexes with low-vibrational frequency C-F and P=O units are elucidated in terms of geometrical, vibrational, and chemical structures.
Описание: This thesis deals with strongly luminescent lanthanide complexes having novel coordination structures. In this thesis, the luminescent properties of lanthanide complexes with low-vibrational frequency C-F and P=O units are elucidated in terms of geometrical, vibrational, and chemical structures.
Описание: This thesis provides essential information on the systematic design of assembled lanthanide complexes for functional luminescent materials.
Автор: Cheng, Peng (Ed.) Название: Lanthanide Metal-Organic Frameworks ISBN: 3662457725 ISBN-13(EAN): 9783662457726 Издательство: Springer Рейтинг: Цена: 26552.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding.