Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Ruan, Bei Sun, Xiaolong Xiong, Yuanyuan Wu, Kezhong Chen, Jing |
| Copyright Year | 2015 |
| Abstract | Compounds [n-C$_{ n }$H$_{2n+1}$N(CH$_{3}$)$_{3}$]$_{2}$CoCl$_{4}$(n=16, C$_{16}$C$_{3}$Co; n=18, C$_{18}$C$_{3}$Co) containing lipid-like bilayers embedded in a crystalline matrix exist in solid-solid phase transition. The low-temperature bilayer structures of the two compounds were organized by neutralizing CoCl 4 2− with alkylammonium ions. Alkyl chains lay parallel to each other and slightly tilted with respect to the normal of the inorganic layers. The adjacent alkyl chains interacted with each other by van der Waals interaction. When the temperature increased, the two compounds underwent a reversible solid-solid phase transformation within 310–330 K. In such a case, the chains showed a large motional freedom, and a disordered phase appeared. The structures can alternatively be viewed as a double layer of alkylammonium ions between CoCl 4 2− sheets and be considered as crystalline models of lipid bilayers. The experimental subsolidus binary phase diagram of [n-C$_{16}$H$_{33}$N(CH$_{3}$)$_{3}$]$_{2}$CoCl$_{4}$-[n-C$_{18}$H$_{37}$N(CH$_{3}$)$_{3}$]$_{2}$CoCl$_{4}$ was constructed over the entire composition range by differential scanning calorimetry and X-ray diffraction technique. Experimental phase diagram indicates one stable intermediate phase [n-C$_{16}$H$_{33}$N(CH$_{3}$)$_{3}$][n-C$_{18}$H$_{37}$N(CH$_{3}$)$_{3}$]CoCl$_{4}$ at $$w_{C_{16} C_3 Co} = 39.89\%$$ and two invariant three-phase equilibria, which shows two eutectoid temperature e$_{1}$ at (316±1) K for $$w_{C_{16} C_3 Co} = 27.35\%$$ and e$_{2}$ at (313±1) K for $$w_{C_{16} C_3 Co} = 59.76\%$$ . These three noticeable solid-solution ranges are α-phase at the left, β-phase at the right, and γ-phase in the middle of the phase diagram. |
| Starting Page | 611 |
| Ending Page | 614 |
| Page Count | 4 |
| File Format | |
| ISSN | 10059040 |
| Journal | Chemical Research in Chinese Universities |
| Volume Number | 31 |
| Issue Number | 4 |
| e-ISSN | 22103171 |
| Language | English |
| Publisher | Jilin University and The Editorial Department of Chemical Research in Chinese Universities |
| Publisher Date | 2015-07-10 |
| Publisher Place | Changchun |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Differential scanning calorimetry Chemistry/Food Science Analytical Chemistry Phase diagram Physical Chemistry Quaternary ammonium tetrachlorometallate Eutectoid temperature Inorganic Chemistry Phase equilibrium Organic Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Education |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|