CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Negative Linear Compressibility in Organic Mineral Ammonium Oxalate Monohydrate with Hydrogen Bonding Wine-Rack Motifs
Qiao, YC; Wang, K; Yuan, HS; Yang, K; Zou, B; Zou, B (reprint author), Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China.
2015
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
Volume6Issue:14Pages:2755—2760
Subtype期刊文献
AbstractNegative linear compressibility (NLC) is a relatively uncommon phenomenon and rarely studied in organic systems. Here we provide the direct evidence of the persistent NLC in organic mineral ammonium oxalate monohydrate under high pressure using synchrotron X-ray powder diffraction, Raman spectroscopy and density functional theory (DFT) calculation. Synchrotron X-ray powder diffraction measurement reveals that ammonium oxalate monohydrate shows both positive and negative linear compressibility along b-axis before 11.5 GPa. The red shift of the external Raman modes and abnormal changes of several selected internal modes in high-pressure Raman spectra further confirmed the NLC. DFT calculations demonstrate that the N-H center dot center dot center dot O hydrogen bonding "wine-rack" motifs result in the NLC along b-axis in ammonium oxalate monohydrate. We anticipate the high-pressure study of ammonium oxalate monohydrate may represent a promising strategy for accelerating the pace of exploitation and improvement of NLC materials especially in organic systems.
KeywordThermal-expansion Phase-transition High-pressure Neutron-diffraction Natural Oxalates X-ray Framework Raman Spectroscopy Behavior
Language英语
WOS IDWOS:000358339600018
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25002
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorZou, B (reprint author), Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China.
Recommended Citation
GB/T 7714
Qiao, YC,Wang, K,Yuan, HS,et al. Negative Linear Compressibility in Organic Mineral Ammonium Oxalate Monohydrate with Hydrogen Bonding Wine-Rack Motifs[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(14):2755—2760.
APA Qiao, YC,Wang, K,Yuan, HS,Yang, K,Zou, B,&Zou, B .(2015).Negative Linear Compressibility in Organic Mineral Ammonium Oxalate Monohydrate with Hydrogen Bonding Wine-Rack Motifs.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(14),2755—2760.
MLA Qiao, YC,et al."Negative Linear Compressibility in Organic Mineral Ammonium Oxalate Monohydrate with Hydrogen Bonding Wine-Rack Motifs".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.14(2015):2755—2760.
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