Confinement-driven radical change in a sequence of rotator phases: a study on n-octacosane
Literature Information
Sujeet Dutta, S. Krishna Prasad
Rotator-phase forming n-alkanes have been studied extensively in both their bulk state and in nanoconfinement. While some alkanes maintain their bulk-state rotator phases in nanoconfinement albeit with increased disorder, there are others exhibiting new rotator phases upon confinement. We present here a temperature dependent X-ray diffraction (XRD) and differential scanning calorimetric (DSC) study on n-octacosane (C28H58), which almost completely loses its bulk state RIV phase and undergoes complete disappearance of its RIII phase. In their place, when confined in cylindrical anodized alumina nanopores, a phase highly resembling the hexatic mesophase is formed at a higher temperature and the RI rotator phase at a lower temperature. The effects of finite size, interfacial interactions with the host matrix and alkyl chain flexibility are used to provide an explanation for such unexpected behaviour.
Recommended Journals
Related Literature
Effect of copper doping on plasmonic nanofilms for high performance photovoltaic energy applications
Ghulam Hasnain Tariq, Ghulam Asghar, M. Shahzad Shifa, M. Anis-Ur-Rehman, Sana Ullah, Zulfiqar Ali Shah, Ahmed M. Tawfeek, Farooq Sher
DOI: 10.1039/D3CP04332K
Prediction of 2D group-11 chalcogenides: insights into novel auxetic M2X (M = Cu, Ag, Au; X = S, Se, Te) monolayers
Yufei Xue, Weina Ren, Xuxia Shai, Tingting Wei, Chunhua Zeng, Hua Wang
DOI: 10.1039/D3CP04397E
Correction: UV and VUV-induced fragmentation of tin-oxo cage ions
Jarich Haitjema, Lianjia Wu, Laurent Nahon, Sonia Castellanos
DOI: 10.1039/D3CP90231E
XANES analysis of phosphate glasses melted with Tb4O7 and SnO: evaluating the impact of valence states on structural, thermal, and luminescent properties
José A. Jiménez, Dugan Hayes, Cali Antolini, Benjamin J. Reinhart
DOI: 10.1039/D3CP04784A
Lone-pair-induced formation of intrinsic one-dimensional SbSX (X = Cl, Br, I) helix chain materials
Cong Hu
DOI: 10.1039/D3CP00061C
Enhanced electrocatalytic hydrogen evolution from nitrogen plasma-tailored MoS2 nanostructures
You Li, Yi Wan, Jiamin Yao, Hongqian Zheng, Xi Wang, Xuan Liu, Bo Ouyang, Chengxi Huang, Kaiming Deng, Erjun Kan
DOI: 10.1039/D3CP04951E
Machine-learning prediction of thermal expansion coefficient for perovskite oxides with experimental validation
Kevin P. McGuinness, Anton O. Oliynyk, Sangjoon Lee, Beatriz Molero-Sanchez, Paul Kwesi Addo
DOI: 10.1039/D3CP04017H
You might also like
Are there alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3848-36-0) in synthesis?
When considering alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3...
How should (1R,9S,10S,12S,14E,16S,19R,20R,21S,22R)-3,9,21-Trihydroxy-5,10,12,14,16,20,22-heptamethyl-23,24-dioxatetracyclo[17.3.1.1~6,9~.0~2,7~]tetracosa-2,5,7,14-tetraen-4-one (CAS: 183202-73-5) be stored?
This compound should be stored in a cool, dry place away from direct sunlight. I...
How is 3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole (CAS: 419553-16-5) typically synthesized?
3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole is synthesized through a m...
How is 5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS: 1639220-19-1) typically synthesized?
5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS...
What industries use 2-Chloro-4-(difluoromethoxy)pyridine (CAS: 1206978-15-5)?
2-Chloro-4-(difluoromethoxy)pyridine is used in the pharmaceutical industry for ...
What regulatory guidelines apply to 3-Chloro-6-methylpyridazine (CAS: 1121-79-5)?
3-Chloro-6-methylpyridazine (CAS: 1121-79-5) is classified under the Globally Ha...
Are there alternatives to Methyl 4,5-dimethyl-2-nitrobenzoate in synthesis?
Several alternatives can be used in the synthesis of Methyl 4,5-dimethyl-2-nitro...
Are there alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde in synthesis?
Alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde include other acry...
What is 3-Amino-5-chloropyridin-2-ol hydrochloride (CAS: 1261906-29-9)?
3-Amino-5-chloropyridin-2-ol hydrochloride is an organic compound with the CAS n...
What precautions should be taken when handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one (CAS: 1092349-93-3)?
When handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one, it is essential to wear...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














