Phase transitions and nonplanar conformers in crystalline n-alkanes

Robert G. Snyder; Mark Maroncelli; Song Ping Qi; Herbert L. Strauss

doi:10.1126/science.214.4517.188

Phase transitions and nonplanar conformers in crystalline n-alkanes

Robert G. Snyder, Mark Maroncelli, Song Ping Qi, Herbert L. Strauss

Chemistry

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176 Scopus citations

Abstract

Crystals of n-alkanes show a remarkable series of solid-solid phase transitions. In the odd n-alkanes C₂₅, C₂₇, and C ₂₉ a previously unknown transition is found by both calorimetry and infrared spectroscopy. The ubiquitous presence of nonplanar conformations of the chains is shown by infrared spectroscopy. The nonplanar conformers constitute approximately half the molecules in the highest temperature solid phase of C₂₉.

Original language	English (US)
Pages (from-to)	188-190
Number of pages	3
Journal	Science
Volume	214
Issue number	4517
DOIs	https://doi.org/10.1126/science.214.4517.188
State	Published - 1981

All Science Journal Classification (ASJC) codes

General

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10.1126/science.214.4517.188

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title = "Phase transitions and nonplanar conformers in crystalline n-alkanes",

abstract = "Crystals of n-alkanes show a remarkable series of solid-solid phase transitions. In the odd n-alkanes C25, C27, and C 29 a previously unknown transition is found by both calorimetry and infrared spectroscopy. The ubiquitous presence of nonplanar conformations of the chains is shown by infrared spectroscopy. The nonplanar conformers constitute approximately half the molecules in the highest temperature solid phase of C29.",

author = "Snyder, {Robert G.} and Mark Maroncelli and Qi, {Song Ping} and Strauss, {Herbert L.}",

year = "1981",

doi = "10.1126/science.214.4517.188",

language = "English (US)",

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journal = "Science",

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publisher = "American Association for the Advancement of Science",

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T1 - Phase transitions and nonplanar conformers in crystalline n-alkanes

AU - Snyder, Robert G.

AU - Maroncelli, Mark

AU - Qi, Song Ping

AU - Strauss, Herbert L.

PY - 1981

Y1 - 1981

N2 - Crystals of n-alkanes show a remarkable series of solid-solid phase transitions. In the odd n-alkanes C25, C27, and C 29 a previously unknown transition is found by both calorimetry and infrared spectroscopy. The ubiquitous presence of nonplanar conformations of the chains is shown by infrared spectroscopy. The nonplanar conformers constitute approximately half the molecules in the highest temperature solid phase of C29.

AB - Crystals of n-alkanes show a remarkable series of solid-solid phase transitions. In the odd n-alkanes C25, C27, and C 29 a previously unknown transition is found by both calorimetry and infrared spectroscopy. The ubiquitous presence of nonplanar conformations of the chains is shown by infrared spectroscopy. The nonplanar conformers constitute approximately half the molecules in the highest temperature solid phase of C29.

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JF - Science

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ER -

Phase transitions and nonplanar conformers in crystalline n-alkanes

Abstract

All Science Journal Classification (ASJC) codes

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