Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

PROTON-TRANSFER IN A PHENOL-BASED COMPARTMENTAL CRYPTATE - SOLUTION AND SOLID-STATE STRUCTURAL STUDIES

Tools
- Tools
+ Tools

UNSPECIFIED (1994) PROTON-TRANSFER IN A PHENOL-BASED COMPARTMENTAL CRYPTATE - SOLUTION AND SOLID-STATE STRUCTURAL STUDIES. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS (21). pp. 3149-3158.

Research output not available from this repository, contact author.

Request Changes to record.

Abstract

Under pH-neutral conditions, a potentially dinucleating azacryptand N[(CH2)2N=CH-R-CH=N(CH2)2]3N L1(R = m-C6H2OH-2-Me-5) was found to accommodate just one metal cation; H-1 NMR spectra showed that the second site is occupied by three protons transferred from phenol to imino N. Under basic conditions, the protons can be displaced by a second cation forming a dinuclear cryptate. X-Ray crystallographic structure determinations have been made for the complexes [PbL1][BPh4]2, two forms of [CdL1][ClO4]2, a and b and [Cd2(L1 - 3H)][ClO4]2. In the first three complexes one metal ion is encapsulated within the macrocycle. However in all three cases the position is disordered over two equivalent sites; in the lead compound in the ratio 0.87:0.13 and in the cadmium compound a 0.66:0.34. In b the disorder is over two equivalent crystallographic positions so the ratio is 0.50:0.50. In the last complex two cadmium cations occupy the macrocycle. In all four structures the metal atoms are bonded to all three oxygen atoms and three imine atoms. In addition there is an interaction with a bridgehead nitrogen atom so that the metal co-ordination spheres can best be considered as seven-co-ordinate capped octahedra.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Journal or Publication Title: JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
Publisher: ROYAL SOC CHEMISTRY
ISSN: 0300-9246
Official Date: 7 November 1994
Dates:
DateEvent
7 November 1994UNSPECIFIED
Number: 21
Number of Pages: 10
Page Range: pp. 3149-3158
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us