Research output: Contribution to journal › Article › peer-review
Zn(NH3)2Cl2, a Mineral-like Anthropogenic Phase with Ammine Complexes from the Burned Dumps of the Chelyabinsk Coal Basin, South Urals, Russia: Crystal Structure, Spectroscopy and Thermal Evolution. / Zolotarev, Andrey A.; Avdontceva, Margarita S.; Sheveleva, Rezeda M.; Pekov, Igor V.; Vlasenko, Natalia S.; Bocharov, Vladimir N.; Krzhizhanovskaya, Maria G.; Zolotarev, Anatoly A.; Rassomakhin, Mikhail A.; Krivovichev, Sergey V.
In: Minerals, Vol. 13, No. 8, 21.08.2023, p. 1109.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Zn(NH3)2Cl2, a Mineral-like Anthropogenic Phase with Ammine Complexes from the Burned Dumps of the Chelyabinsk Coal Basin, South Urals, Russia: Crystal Structure, Spectroscopy and Thermal Evolution
AU - Zolotarev, Andrey A.
AU - Avdontceva, Margarita S.
AU - Sheveleva, Rezeda M.
AU - Pekov, Igor V.
AU - Vlasenko, Natalia S.
AU - Bocharov, Vladimir N.
AU - Krzhizhanovskaya, Maria G.
AU - Zolotarev, Anatoly A.
AU - Rassomakhin, Mikhail A.
AU - Krivovichev, Sergey V.
PY - 2023/8/21
Y1 - 2023/8/21
N2 - The mineral-like anthropogenic phase Zn(NH3)2Cl2, with ammine (NH30) complexes from the burned dumps of the Chelyabinsk coal basin (South Urals, Russia), has been investigated using single-crystal and high-temperature powder X-ray diffraction, and Raman and infrared (IR) spectroscopy. The anthropogenic Zn(NH3)2Cl2 is orthorhombic, Imma, a = 7.7399(6), b = 8.0551(5), c = 8.4767(8) Å, V = 528.49(7) Å3, R1 = 0.0388 at −73 °C. Its crystal structure is based upon isolated ZnN2Cl2 tetrahedra connected by hydrogen bonds (between NH3 groups and Cl atoms) into a three-dimensional network. Upon heating, the Zn(NH3)2Cl2 phase is stable up to about 150 °C, which is in good agreement with the data on the temperature of its formation. The crystal structure of Zn(NH3)Cl2 expands anisotropically with the strongest thermal expansion observed along the a axis. The thermal expansion of the structure is controlled by the changes in the hydrogen bonding system. The Raman and IR spectroscopic characteristics of this phase are close to those of the mineral ammineite, CuCl2(NH3)2. The studied anthropogenic phase, formed in the unique conditions of burned coal dumps, is identical to the synthetic Zn(NH3)2Cl2.
AB - The mineral-like anthropogenic phase Zn(NH3)2Cl2, with ammine (NH30) complexes from the burned dumps of the Chelyabinsk coal basin (South Urals, Russia), has been investigated using single-crystal and high-temperature powder X-ray diffraction, and Raman and infrared (IR) spectroscopy. The anthropogenic Zn(NH3)2Cl2 is orthorhombic, Imma, a = 7.7399(6), b = 8.0551(5), c = 8.4767(8) Å, V = 528.49(7) Å3, R1 = 0.0388 at −73 °C. Its crystal structure is based upon isolated ZnN2Cl2 tetrahedra connected by hydrogen bonds (between NH3 groups and Cl atoms) into a three-dimensional network. Upon heating, the Zn(NH3)2Cl2 phase is stable up to about 150 °C, which is in good agreement with the data on the temperature of its formation. The crystal structure of Zn(NH3)Cl2 expands anisotropically with the strongest thermal expansion observed along the a axis. The thermal expansion of the structure is controlled by the changes in the hydrogen bonding system. The Raman and IR spectroscopic characteristics of this phase are close to those of the mineral ammineite, CuCl2(NH3)2. The studied anthropogenic phase, formed in the unique conditions of burned coal dumps, is identical to the synthetic Zn(NH3)2Cl2.
KW - Chelyabinsk coal basin
KW - Raman spectroscopy
KW - Zn(NH3)2Cl2
KW - anthropogenic mineral-like phase
KW - burned coal dumps
KW - crystal structure
KW - infrared spectroscopy
KW - thermal behavior
UR - https://www.mendeley.com/catalogue/1287ad99-8095-35e5-8f9c-1979791d884e/
U2 - 10.3390/min13081109
DO - 10.3390/min13081109
M3 - Article
VL - 13
SP - 1109
JO - Minerals
JF - Minerals
SN - 2075-163X
IS - 8
ER -
ID: 110670878