WEKO3
-
RootNode
アイテム
Substituent-dependent backward reaction in mechanofluorochromism of dibenzoylmethanatoboron difluoride derivatives
http://hdl.handle.net/10091/00021128
http://hdl.handle.net/10091/0002112869adc8d5-453d-4c5e-b31d-d95f82580f15
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
26410009_05.pdf (1.6 MB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2019-01-30 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Substituent-dependent backward reaction in mechanofluorochromism of dibenzoylmethanatoboron difluoride derivatives | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | eng | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連識別子 | https://doi.org/10.1039/c5pp00453e | |||||||||||||||||
| 関連名称 | 10.1039/c5pp00453e | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
| タイプ | journal article | |||||||||||||||||
| 著者 |
Sagawa, Takehiro
× Sagawa, Takehiro
× Ito, Fuyuki
× Sakai, Atsushi
× Ogata, Yudai
× Tanaka, Keiji
× Ikeda, Hiroshi
|
|||||||||||||||||
| 信州大学研究者総覧へのリンク | ||||||||||||||||||
| 氏名 | Ito, Fuyuki | |||||||||||||||||
| URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.yCAebCDV.html | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | Royal Society of Chemistry | |||||||||||||||||
| 引用 | ||||||||||||||||||
| 内容記述 | PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES.15(3):420-430(2016) | |||||||||||||||||
| 書誌情報 |
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES 巻 15, 号 3, p. 420-430, 発行日 2016-02-11 |
|||||||||||||||||
| 抄録 | ||||||||||||||||||
| 内容記述 | The thermally backward reaction involved in the mechanofluorochromism of dibenzoylmethanatoboron difluoride (BF2DBM) derivatives, accompanied by an amorphous–crystalline phase transition, was quantitatively evaluated based on kinetics and thermodynamics. The kinetics was discussed by evaluation of the effect of temperature on the time-dependent changes of the fluorescence intensity for amorphous samples obtained by mechanical grinding. The thermodynamics was discussed based on data for the amorphous–crystalline phase transition obtained by differential scanning calorimetry. The enthalpy of activation (ΔH‡) of BF2DBM derivatives with MeO groups (2aBF2) was larger than that of derivatives with alkyl groups (2b-dBF2), whereas the entropy of activation (ΔS‡) was smaller than that of the derivatives with alkyl groups. It is proposed that the reaction dynamics of 2aBF2 will be governed by rotational motion around the C(methyl)–O bond. Interestingly, the Gibbs energies of activation (ΔG‡) were comparable for the reactions of all members of the BF2DBM series, though ΔH‡ and ΔS‡ were strongly dependent on the identity of the substituent. It is proposed that the substituent-dependent ΔS‡ term is one of the key parameters for understanding the mechanofluorochromism of BF2DBM derivatives associated with the amorphous–crystalline phase transition. These findings will also provide important insights into the process of formation of crystal nuclei in moving from the melted to the crystalline state. | |||||||||||||||||
| 資源タイプ（コンテンツの種類） | ||||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 1474-905X | |||||||||||||||||
| 書誌レコードID | ||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||
| 収録物識別子 | AA11791060 | |||||||||||||||||
| PubMed | ||||||||||||||||||
| 識別子タイプ | PMID | |||||||||||||||||
| 関連識別子 | https://www.ncbi.nlm.nih.gov/pubmed/26907200 | |||||||||||||||||
| 関連名称 | 26907200 | |||||||||||||||||
| 出版タイプ | ||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
| WoS | ||||||||||||||||||
| URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000372249700014 | |||||||||||||||||
Share
Cite as
Sagawa, Takehiro, Ito, Fuyuki, Sakai, Atsushi, Ogata, Yudai, Tanaka, Keiji, Ikeda, Hiroshi, 2016, Substituent-dependent backward reaction in mechanofluorochromism of dibenzoylmethanatoboron difluoride derivatives: Royal Society of Chemistry, 420–430 p.
