CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Australian Journal of Chemistry   
Australian Journal of Chemistry
Journal Banner
  An international journal for chemical science
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
For Advertisers
Content
Online Early
Current Issue
Just Accepted
All Issues
Virtual Issues
Special Issues
Research Fronts
Sample Issue
Covers
For Authors
General Information
Notice to Authors
Submit Article
Open Access
For Referees
Referee Guidelines
Review an Article
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter youtube

Affiliated with RACI

Royal Australian Chemical Institute
Royal Australian
Chemical Institute


 

Article << Previous     |     Next >>   Contents Vol 66(4)

A Comparative Study of the Structural, Optical, and Electrochemical Properties of Squarate-Based Coordination Frameworks

Pavel M. Usov A , Tony D. Keene A B and Deanna M. D’Alessandro A C

A School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
B School of Chemistry and Physics, The University of Adelaide, Adelaide, SA 5005, Australia.
C Corresponding author. Email: deanna@chem.usyd.edu.au

Australian Journal of Chemistry 66(4) 429-435 http://dx.doi.org/10.1071/CH12474
Submitted: 17 October 2012  Accepted: 24 November 2012   Published: 19 December 2012


 
PDF (927 KB) $25
 Supplementary Material
 Export Citation
 Print
  
Abstract

Systematic studies of the thermal expansion, optical, and redox properties of a series of six squarate-based frameworks, [MII(C4O4)(H2O)2] (MII = MnII, FeII, CoII, NiII, ZnII, CdII) have revealed that five members of the series exhibit cubic structures in which the squarate ligands are configured in an ‘eclipsed’ phase, while the CdII analogue exhibits a trigonal structure with a ‘staggered’ orientation of the ligands. The ‘eclipsed’ structures are characterised by a positive coefficient of thermal expansion, while the CdII analogue exhibits zero thermal expansion. Ultraviolet-visible-near infrared (UV-Vis-NIR) spectra and electrochemical measurements indicate that electron delocalisation across the dianionic squarate bridge is absent.





References

[1]  (a) G. Seitz, P. Imming, Chem. Rev. 1992, 92, 1227.
         | CrossRef | CAS |
      (b) S. Cohen, J. R. Lacher, J. D. Park, J. Am. Chem. Soc. 1959, 81, 3480.
         | CrossRef |

[2]  (a) C. R. Lee, C. C. Wang, Y. Wang, Acta Crystallogr. B 1996, 52, 966.
         | CrossRef |
      (b) L. A. Hall, D. J. Williams, Adv. Inorg. Chem. 2001, 52, 249.

[3]  R. West, H. Y. Niu, J. Am. Chem. Soc. 1963, 85, 2589.
         | CrossRef | CAS |

[4]  A. Ludi, P. Schindle, Angew. Chem. Int. Ed. 1968, 7, 638.
         | CrossRef | CAS |

[5]  M. Habenschuss, B. C. Gerstein, J. Chem. Phys. 1974, 61, 852.
         | CrossRef | CAS |

[6]  J. Greve, C. Nather, Acta Crystallogr. Sect. E Struct. Rep. Online 2002, 58, m625.
         | CrossRef |

[7]  (a) S. Neeraj, M. L. Noy, C. N. R. Rao, A. K. Cheetham, Solid State Sci. 2002, 4, 1231.
         | CrossRef | CAS |
      (b) H. Kumagai, H. Sobukawa, M. Kurmoo, J. Mater. Sci. 2008, 43, 2123.
         | CrossRef |

[8]  M. Habenschuss, B. C. Gerstein, J. Chem. Phys. 1974, 61, 852.
         | CrossRef | CAS |

[9]  T. K. Maji, G. Mostafa, S. Sain, J. S. Prasad, N. R. Chaudhuri, CrystEngComm 2001, 3, 155.
         | CrossRef |

[10]  D. M. D’Alessandro, B. Smit, J. R. Long, Angew. Chem. Int. Ed. 2010, 49, 6058.
         | CrossRef | CAS |

[11]  R. A. Bailey, W. N. Mills, W. J. Tangredi, J. Inorg. Nucl. Chem. 1971, 33, 2387.
         | CrossRef | CAS |

[12]  R. D. Shannon, Acta Crystallogr. A 1976, 32, 751.
         | CrossRef |

[13]  A. E. Phillips, G. J. Halder, K. W. Chapman, A. L. Goodwin, C. J. Kepert, J. Am. Chem. Soc. 2010, 132, 10.
         | CrossRef | CAS |

[14]  (a) Y. Wu, A. Kobayashi, G. J. Halder, V. K. Peterson, K. W. Chapman, N. Lock, P. D. Southon, C. J. Kepert, Angew. Chem. Int. Ed. 2008, 47, 8929.
         | CrossRef | CAS |
      (b) K. W. Chapman, P. J. Chupas, C. J. Kepert, J. Am. Chem. Soc. 2006, 128, 7009.
         | CrossRef |

[15]  M. L. Myrick, M. N. Simcock, M. Baranowski, H. Brooke, S. L. Morgan, J. N. McCutcheon, Appl. Spectrosc. Rev. 2011, 46, 140.
         | CrossRef |

[16]  (a) G. Bussiere, C. Reber, J. Am. Chem. Soc. 1998, 120, 6306.
         | CrossRef | CAS |
      (b) D. R. Armstrong, R. Fortune, P. G. Perkins, J. Chem. Soc., Dalton Trans. 1976, 753.
         | CrossRef |
      (c) C. M. Aguilar, W. B. De Almeida, W. R. Rocha, Chem. Phys. Lett. 2007, 449, 144.
         | CrossRef |

[17]  C. K. Jørgensen, Acta Chem. Scand. 1954, 8, 1495.
         | CrossRef |

[18]  B. C. Gerstein, M. Habenschuss, J. Appl. Phys. 1972, 43, 5155.
         | CrossRef | CAS |

[19]  P. Thompson, D. E. Cox, J. B. Hastings, J. Appl. Cryst. 1987, 20, 79.
         | CrossRef | CAS |

[20]  L. W. Finger, D. E. Cox, A. P. Jephcoat, J. Appl. Cryst. 1994, 27, 892.
         | CrossRef | CAS |

[21]  B. A. Hunter, C. J. Howard, RIETICA: A Computer Program for Rietveld Analysis of X-Ray and Neutron Powder Diffraction Patterns 1998 (ANSTO: Lucas Heights, Australia).


   
Subscriber Login
Username:
Password:  

 


    
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2014