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| 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 Publication | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| ISSN | 1948-7185 |
| Volume | 6Issue:14Pages:2755—2760 |
| Subtype | 期刊文献 |
| Abstract | Negative 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. |
| Keyword | Thermal-expansion Phase-transition High-pressure Neutron-diffraction Natural Oxalates X-ray Framework Raman Spectroscopy Behavior |
| Language | 英语 |
| WOS ID | WOS:000358339600018 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/25002 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Corresponding Author | Zou, 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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| Negative Linear Comp（1226KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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