New NIR-emissive tetranuclear Er(III) complexes with 4-hydroxo-2,1,3-benzothiadiazolate and dibenzoylmethanate ligands: synthesis and characterization

New tetranuclear heteroleptic complexes [Er4(dbm)6(O-btd)4(OH)2] (1) and [Er4(dbm)4(O-btd)6(OH)2] (2) (O-btd = 4-hydroxo-2,1,3-benzothiadiazolate and dbm = dibenzoylmethanide) and their solvates with toluene, THF and CH2Cl2 were prepared using two synthetic approaches. The structures of the products...

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Published in:Dalton transactions Vol. 44, № 4. P. 5727-5734
Corporate Author: Томский государственный университет Химический факультет Кафедра органической химии
Other Authors: Sukhikh, Taisiya S., Kuratieva, Natalia V., Smolentsev, Anton I., Bogomyakov, Artem S., Burilov, Vladimir A., Mustafina, Asia R., Zibarev, Andrey V., Konchenko, Sergey N., Bashirov, Denis A.
Format: Article
Language:English
Subjects:
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000526066
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245 1 0 |a New NIR-emissive tetranuclear Er(III) complexes with 4-hydroxo-2,1,3-benzothiadiazolate and dibenzoylmethanate ligands: synthesis and characterization  |c T. S. Sukhikh, D. A. Bashirov, N. V. Kuratieva [et.al.] 
504 |a Библиогр.: 52 назв. 
520 3 |a New tetranuclear heteroleptic complexes [Er4(dbm)6(O-btd)4(OH)2] (1) and [Er4(dbm)4(O-btd)6(OH)2] (2) (O-btd = 4-hydroxo-2,1,3-benzothiadiazolate and dbm = dibenzoylmethanide) and their solvates with toluene, THF and CH2Cl2 were prepared using two synthetic approaches. The structures of the products were confirmed by single-crystal X-ray diffraction. Magnetic properties of 1 and 2 are in good agreement with X-ray data. The effective magnetic moment (μeff) values at 300 K for 1 and 2 corresponds to a system of 4 non-interacting Er(III) ions in the ground state 4J15/2 with g = 6/5. At ambient temperature and upon excitation with λexc = 450 nm, complexes 1 and 2 exhibit luminescence at ∼1530 nm, i.e. in the near infra-red (NIR) region. The luminescence intensity grows with increasing the number of the (O-btd)−ligands in the complexes. This observation suggests (O-btd)− as a new efficient antenna ligand for the lanthanide-based NIR luminescence. 
653 |a лиганды 
653 |a лантаниды 
653 |a люминесценция 
655 4 |a статьи в журналах  |9 681159 
700 1 |a Sukhikh, Taisiya S.  |9 135591 
700 1 |a Kuratieva, Natalia V.  |9 135592 
700 1 |a Smolentsev, Anton I.  |9 135593 
700 1 |a Bogomyakov, Artem S.  |9 135594 
700 1 |a Burilov, Vladimir A.  |9 135595 
700 1 |a Mustafina, Asia R.  |9 135596 
700 1 |a Zibarev, Andrey V.  |9 96514 
700 1 |a Konchenko, Sergey N.  |9 135597 
700 1 |a Bashirov, Denis A.  |9 135598 
710 2 |a Томский государственный университет  |b Химический факультет  |b Кафедра органической химии  |9 78711 
773 0 |t Dalton transactions  |d 2015  |g Vol. 44, № 4. P. 5727-5734  |x 1477-9226 
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