Journal of Chemical Crystallography

, Volume 44, Issue 9, pp 480–486 | Cite as

Two Novel Cationic Frameworks Based on Cadmium(II) Vinylphosphonate with 4,4′-Bipyridine as Coligand

  • Yingping Zhao
  • Cuicui Zhao
  • Tingting Xu
  • Qing Huang
  • Ziyi Du
Original Paper


The reaction of cadmium nitrate and vinylphosphonic acid (H2L) with 4,4′-bipyridine (bipy) as coligand led to two novel cadmium(II) vinylphosphonates, namely, [Cd4(L)3(NO3)(bipy)4(H2O)3]·(NO3)·3(H2O) (1) and [Cd3(HL)3(L)(bipy)3(H2O)4]·(NO3)·3.5(H2O) (2). Both compounds feature a cationic framework which encloses charge-balanced nitrate anions as well as guest water molecules. They represent the first examples of metal-organic frameworks based on mixed bridging ligands that contain a low-carbon-number alkylphosphonate. Notably, the cationic framework of 2 manifests an unprecedented (4,5)-connected net topology with point symbol of (42·6·83)·(43·65·82)2.

Graphical Abstract

Two novel cationic frameworks based on cadmium(II) vinylphosphonate with 4,4′-bipyridine as coligand are reported here.


Cadmium Phosphonate-based MOF Crystal structure Topology 



This work was supported by the NNSF of China (21061001, 21361002), and the Young Scientists Training Program of Jiangxi Province (20122BCB23020).

Conflict of interests

The authors declare no conflict of interests.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Yingping Zhao
    • 1
  • Cuicui Zhao
    • 1
  • Tingting Xu
    • 1
  • Qing Huang
    • 1
  • Ziyi Du
    • 1
  1. 1.College of Chemistry and Chemical EngineeringGannan Normal UniversityGanzhouPeople’s Republic of China

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