Research output: Contribution to journal › Article › peer-review
Crystal structure of new formamidinium triiodide jointly refined by single-crystal XRD, Raman scattering spectroscopy and DFT assessment of hydrogen-bond network features. / Ordinartsev, Artem A.; Petrov, Andrey A.; Lyssenko, Konstantin A.; Petrov, Andrey V.; Goodilina, Eugene A.; Tarasov, Alexey B.
In: Acta Crystallographica Section E: Crystallographic Communications, Vol. 77, No. Pt 7, E77, 01.07.2021, p. 692-695.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Crystal structure of new formamidinium triiodide jointly refined by single-crystal XRD, Raman scattering spectroscopy and DFT assessment of hydrogen-bond network features
AU - Ordinartsev, Artem A.
AU - Petrov, Andrey A.
AU - Lyssenko, Konstantin A.
AU - Petrov, Andrey V.
AU - Goodilina, Eugene A.
AU - Tarasov, Alexey B.
N1 - Publisher Copyright: © 2021 International Union of Crystallography. All rights reserved.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - A novel triiodide phase of the formamidinium cation, CH5N2+.I3-, crystallizes in the triclinic space group P1 at a temperature of 110 K. The structure consists of two independent isolated triiodide ions located on inversion centers. The centrosymmetric character of I3- was additionally confirmed by the observed pronounced peaks of symmetrical oscillations of I3- at 115-116 cm-1 in Raman scattering spectra. An additional structural feature is that each terminal iodine atom is connected with three neighboring planar formamidinium cations by N-H···I hydrogen bonding with the N-H···I bond length varying from 2.81 to 3.08 A °, forming a deformed two-dimensional framework of hydrogen bonds. A Mulliken population analysis showed that the calculated charges of hydrogen atoms correlate well with hydrogen-bond lengths. The crystal studied was refined as a three-component twin with domain ratios of 0.631 (1):0.211 (1): 0.158 (1).
AB - A novel triiodide phase of the formamidinium cation, CH5N2+.I3-, crystallizes in the triclinic space group P1 at a temperature of 110 K. The structure consists of two independent isolated triiodide ions located on inversion centers. The centrosymmetric character of I3- was additionally confirmed by the observed pronounced peaks of symmetrical oscillations of I3- at 115-116 cm-1 in Raman scattering spectra. An additional structural feature is that each terminal iodine atom is connected with three neighboring planar formamidinium cations by N-H···I hydrogen bonding with the N-H···I bond length varying from 2.81 to 3.08 A °, forming a deformed two-dimensional framework of hydrogen bonds. A Mulliken population analysis showed that the calculated charges of hydrogen atoms correlate well with hydrogen-bond lengths. The crystal studied was refined as a three-component twin with domain ratios of 0.631 (1):0.211 (1): 0.158 (1).
KW - Crystal structure
KW - DFT
KW - Formamidinium
KW - Formamidinium triiodide
KW - Polyiodides
KW - Raman spectroscopy
KW - Reactive polyiodide melts
KW - formamidinium
KW - polyiodides
KW - formamidinium triiodide
KW - reactive polyiodide melts
KW - IODIDE
KW - crystal structure
KW - POLYIODIDE
UR - http://www.scopus.com/inward/record.url?scp=85113138664&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/ac5af0ad-5d72-33cb-9d0f-5ccd4d82bdaf/
U2 - 10.1107/S2056989021005673
DO - 10.1107/S2056989021005673
M3 - Article
C2 - 34513012
AN - SCOPUS:85113138664
VL - 77
SP - 692
EP - 695
JO - Acta Crystallographica Section E: Crystallographic Communications
JF - Acta Crystallographica Section E: Crystallographic Communications
SN - 2056-9890
IS - Pt 7
M1 - E77
ER -
ID: 87741939