Synthesis and spectroscopy of unsymmetric mononuclear lanthanide cryptates. Structure of two europium(III) cryptates co-existing in the same crystal [EuL(OH2)]·[Eu(HL)(NCS)]·9H 2O·2MeCN·EtCN·EtOH (H3L = a phenol-bridged N8O3 Schiff-base cryptand)

Shu Yan Yu, Qun Huang, Biao Wu, Wen Jian Zhang, Xin Tao Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Lanthanide cryptates of a phenol-bridged N8O3 Schiff-base cryptand (H3L) have been synthesized by transmetallation with the sodium cryptate [Na(H2L)], where the cryptand was obtained by a basic template condensation of tris(2-aminoethyl)amine and 2,6-diformyl-4-methoxyphenol. The structure of [EuL(OH2)]·[Eu(HL)(NCS)]·9H 2O·2MeCN·EtCN·EtOH showed the coexistence in the same crystal of two kinds of unsymmetric eight-co-ordinate europium(III) cryptates with different second ligands. The Eu-NCS linkage in [Eu(HL)(NCS)] is linear [Eu-N≡C-S 175(2), N≡C-S 179(2)° and Eu-N 2.42(1) Å].

Original languageEnglish
Pages (from-to)3883-3888
Number of pages6
JournalJournal of the Chemical Society. Dalton Transactions
Issue number19
DOIs
Publication statusPublished - 7 Oct 1996
Externally publishedYes

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