TY - JOUR

T1 - Optical and Magnetic Properties of Cu-Containing Borates with "antizeolite" Structure

AU - Solntsev, Vladimir P.

AU - Bekker, Tatyana B.

AU - Davydov, Aleksey V.

AU - Yelisseyev, Alexander P.

AU - Rashchenko, Sergey V.

AU - Kokh, Alexander E.

AU - Grigorieva, Veronika D.

AU - Park, So Hyun

N1 - Publisher Copyright: © Copyright 2019 American Chemical Society.

PY - 2019/2/21

Y1 - 2019/2/21

N2 - Crystals of copper-doped barium fluoride borate solid solutions Ba 3 (BO 3 ) 2-x F 3x :Cu were grown from high-temperature solution. Using X-ray single-crystal diffraction, the structure was solved and refined in Pbam space group. These crystals are colored in brown, revealing linear dichroism. Optical and electron spin resonance spectroscopic investigations concluded that the light absorption of Ba 3 (BO 3 ) 2-x F 3x :Cu crystals is caused by both the exciton and free charge carriers. This phenomenon is similar to those observed in other colored "antizeolites" built with the positively charged framework of porous [Ba 12 (BO 3 ) 6 ] 6+ building blocks (hence named as antizeolites). The coloring of Ba 3 (BO 3 ) 2-x F 3x :Cu crystals is associated with the absorption of Cu 2+ ions as well. For the first time, constants of the hyperfine interaction of copper ions Cu 2+ in octahedral fluorine surroundings [CuF 6 ] 4- have been determined.

AB - Crystals of copper-doped barium fluoride borate solid solutions Ba 3 (BO 3 ) 2-x F 3x :Cu were grown from high-temperature solution. Using X-ray single-crystal diffraction, the structure was solved and refined in Pbam space group. These crystals are colored in brown, revealing linear dichroism. Optical and electron spin resonance spectroscopic investigations concluded that the light absorption of Ba 3 (BO 3 ) 2-x F 3x :Cu crystals is caused by both the exciton and free charge carriers. This phenomenon is similar to those observed in other colored "antizeolites" built with the positively charged framework of porous [Ba 12 (BO 3 ) 6 ] 6+ building blocks (hence named as antizeolites). The coloring of Ba 3 (BO 3 ) 2-x F 3x :Cu crystals is associated with the absorption of Cu 2+ ions as well. For the first time, constants of the hyperfine interaction of copper ions Cu 2+ in octahedral fluorine surroundings [CuF 6 ] 4- have been determined.

UR - http://www.scopus.com/inward/record.url?scp=85062233157&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.9b00355

DO - 10.1021/acs.jpcc.9b00355

M3 - Article

AN - SCOPUS:85062233157

VL - 123

SP - 4469

EP - 4474

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 7

ER -