Single crystal X-ray diffraction study on high-prebure phase of KHCO3

K. Komatsu, H. Kagi, T. Nagai, T. Kuribayashi, J. B. Parise, Y. Kudoh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The monoclinic and triclinic high-prebure phases of KHCO3 were identified for the first time by in-situ high-prebure single crystal X-ray analysis. These monoclinic and triclinic lattices are different from three previously identified phases, I-III. We propose that the monoclinic and triclinic variants be called phase IV and V, respectively. The two lattices are superimposed along a∗with a∗IV = 2 x a∗V, i.e., the bc plane is common in both lattices in real space. The space group of phase IV is to P21/b11 with unit cell parameters of a = 10.024(3) A, b = 6.912(5) A, c = 4.1868(11) A, α = 115.92(4)°, and V = 260.9(2) A3. The crystal structure of phase IV, without hydrogen site, was refined.

Original languageEnglish
Title of host publicationJoint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
EditorsEckhard Dinjus
PublisherKarlsruhe Forschungszentrum Karlsruhe gmbH
ISBN (Electronic)9783923704491
Publication statusPublished - 2005
EventInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology - Karlsruhe, Germany
Duration: 2005 Jun 272005 Jul 1

Publication series

NameJoint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology

Conference

ConferenceInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
Country/TerritoryGermany
CityKarlsruhe
Period05/6/2705/7/1

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