Dynamic transformation and reversible guest encapsulations of pseudopolymorphs of a fully fluorinated β-diketonate Pd(II) complex

Kyosuke Nakajima, Akiko Hori

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Two types of pseudopolymorphs, 1·(2)3 and 1·(2)2, were obtained from Pd(II) complex (1) with mesitylene (2), and the quantitative transformation into 1·(2)2 from 1·(2)3 was observed over 6 h after shaking for approximately 10 s. The transformation was observed in both a mesitylene-rich solution and under powder conditions. The guest release processes of 1·(2)3 and 1·(2)2 occurred in hexane to yield 1, and the guest insertion processes occurred in 2 to reproduce 1·(2)3 and 1·(2)2, whereas each crystal was constructed from the discrete molecules of each type. These crystals also selectively and repeatedly encapsulated three benzenes or one toluene in the uniform cavities of 1·(2)3 and 1·(2)2. In contrast, the corresponding nonfluorinated derivative, [Pd(dbm)2] (dbm = dibenzoylmetanide), shows no guest encapsulation phenomena, indicating that the remarkable guest encapsulations are induced by fluorine substitutions. The dynamic crystal transformation and the reversible guest encapsulations of the two pseudopolymorphs were investigated by X-ray crystallographic and thermogravimetric studies for both single crystals and powder species.

Original languageEnglish
Pages (from-to)3169-3173
Number of pages5
JournalCrystal Growth and Design
Volume14
Issue number7
DOIs
Publication statusPublished - 2014 Jul 2
Externally publishedYes

Fingerprint

Encapsulation
mesitylene
Powders
Crystals
crystals
Fluorine
shaking
Toluene
Hexanes
Benzene
Hexane
fluorine
toluene
insertion
Substitution reactions
benzene
Single crystals
substitutes
Derivatives
X rays

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Dynamic transformation and reversible guest encapsulations of pseudopolymorphs of a fully fluorinated β-diketonate Pd(II) complex. / Nakajima, Kyosuke; Hori, Akiko.

In: Crystal Growth and Design, Vol. 14, No. 7, 02.07.2014, p. 3169-3173.

Research output: Contribution to journalArticle

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