Next Article in Journal
Absorption-Enhancing Effects of Bile Salts
Previous Article in Journal
Management of Hyperglycaemia by Ethyl Acetate Extract of Balanites aegyptiaca (Desert Date)
Article Menu

Export Article

Open AccessArticle
Molecules 2015, 20(8), 14435-14450;

Molecular Structures of the Products of a Diphosphonate Ester Building Block with Lewis Bases

Microscale Science Institute, Weifang University, Weifang 261061, China
New Materials and Function Coordination Chemistry Lab, Qingdao University of Science & Technology, Qingdao 266042, China
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 29 December 2014 / Revised: 18 June 2015 / Accepted: 23 June 2015 / Published: 7 August 2015
(This article belongs to the Section Organic Chemistry)
Full-Text   |   PDF [2410 KB, uploaded 7 August 2015]   |  


By treating a suitable Wittig reagent under acid conditions, the phosphonate ester 1,4-bimethylenebenzene phosphonate ethyl ester (H2[BBPE], 1) was obtained. As a building block, compound 1 has been reacted with the Lewis-base N,N-dimethylpiperazine, ammonia and NaOH yielded compounds 24. The crystal structures show that a 1D chain forming a tubular channel is constructed through hydrogen bonds in 1; hydrogen bonds form two 1D chains with left-hand and right-hand helixes and form 3D networks in compound 2; 1D hydrogen-bond chains are further connected together to afford a 3D network architecture in compound 3; the phosphonate is coordinated by two Na atoms which present different coordination environments in compound 4. Additionally, the relationships between the structure and fluorescence of the four compounds in the solid state and in different solvents have also been studied at room temperature. View Full-Text
Keywords: phosphonate ester; synthesis; crystal structure; fluorescence phosphonate ester; synthesis; crystal structure; fluorescence

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Li, Y.; Jian, F. Molecular Structures of the Products of a Diphosphonate Ester Building Block with Lewis Bases. Molecules 2015, 20, 14435-14450.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top