Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Phase transformations in a double complex salt of the ruthenium nitrosyl anion and tetraamine-palladium cation. / Kostin, G. A.; Filatov, E. Y.; Pischur, D. P. и др.
в: CrystEngComm, Том 22, № 21, 07.06.2020, стр. 3692-3700.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Phase transformations in a double complex salt of the ruthenium nitrosyl anion and tetraamine-palladium cation
AU - Kostin, G. A.
AU - Filatov, E. Y.
AU - Pischur, D. P.
AU - Kuratieva, N. V.
AU - Korenev, S. V.
PY - 2020/6/7
Y1 - 2020/6/7
N2 - Second-order phase transformation in double complex salt (DCS) [Pd(NH3)4][RuNO(NO2)4OH] was examined by DSC, single-crystal diffraction and powder diffraction. All data confirm the reversible “order-disorder” phase transition without an experimentally detected sharp volume change in the temperature range of 343-363 K. At low temperature, the less symmetric triclinic phase (P1¯) is stable, while the monoclinic phase (P2/m) is stable at high temperature. The main difference between crystal structures is the disorder of the ruthenium anion in the monoclinic phase due to the presence of the ruthenium atom in a special position. The additional symmetry plane in theP2/mphase includes ON-Ru-O atoms, resulting in the rotational disorder of NO2groups. The entropy of transformation determined by differential scanning calorimetry corresponds to order-disorder transformation with a 3-fold increase in microstate number.
AB - Second-order phase transformation in double complex salt (DCS) [Pd(NH3)4][RuNO(NO2)4OH] was examined by DSC, single-crystal diffraction and powder diffraction. All data confirm the reversible “order-disorder” phase transition without an experimentally detected sharp volume change in the temperature range of 343-363 K. At low temperature, the less symmetric triclinic phase (P1¯) is stable, while the monoclinic phase (P2/m) is stable at high temperature. The main difference between crystal structures is the disorder of the ruthenium anion in the monoclinic phase due to the presence of the ruthenium atom in a special position. The additional symmetry plane in theP2/mphase includes ON-Ru-O atoms, resulting in the rotational disorder of NO2groups. The entropy of transformation determined by differential scanning calorimetry corresponds to order-disorder transformation with a 3-fold increase in microstate number.
KW - CRYSTALLIZATION BEHAVIOR
KW - CRYSTAL-STRUCTURE
KW - TRANSITION
KW - POLYMORPHISM
KW - PRECURSORS
KW - CO
KW - LIGANDS
KW - X=BR
KW - NI
UR - http://www.scopus.com/inward/record.url?scp=85085696403&partnerID=8YFLogxK
U2 - 10.1039/d0ce00441c
DO - 10.1039/d0ce00441c
M3 - Article
AN - SCOPUS:85085696403
VL - 22
SP - 3692
EP - 3700
JO - CrystEngComm
JF - CrystEngComm
SN - 1466-8033
IS - 21
ER -
ID: 24410339