Below you can find links* to some of our papers on the Z' > 1 phenomenon. For a more general list of Z' > 1 papers please visit here.

• Designing Co-Crystals of Pharmaceutically Relevant Compounds That Crystallize with Z' > 1
  K. M. Anderson, M. R. Probert, C. N. Whiteley, A. M. Rowland, A. E. Goeta and J. W. Steed
  Cryst. Growth Des., 2009, 9, 1082

Featured in the Virtual Issue on Pharmaceutical Co-crystals published in Crystal Growth & Design

• Supramolecular Synthon Frustration Leads to Crystal Structures with Z' > 1
  K. M. Anderson, A. E. Goeta and J. W. Steed
  Cryst. Growth Des., 2008, 8, 2517

• Crystal Packing in Equilibrating Systems: A Single Crystal Containing Three Isomers of "CuCl(1-pyridin-2-yl-3-p-tolyl-thiourea)"
  J. T. Lenthall, K. M. Anderson, S. J. Smith and J. W. Steed
  Cryst. Growth. Des., 2007, 7, 1858

• Au···Au interactions - Z' > 1 behaviour and structural analysis
  K. M. Anderson*, A. E. Goeta and J. W. Steed
  Inorg. Chem, 2007, 46, 6444.

• A response to: On the presence of multiple molecules in the crystal asymmetric unit (Z' > 1)
  K. M. Anderson and J. W. Steed
  CrystEngComm, 2007, 328 - Most accessed article April 2007

• When Z' = 2 is better than Z' = 1 - supramolecular centrosymmetric hydrogen bonded dimers in chiral systems
  K. M. Anderson, K. Afarinkia, H.-W. Yu, A. E. Goeta and J. W. Steed
  Cryst. Growth Des., 2006, 6, 2109.

• Helical or Polar Guest-Dependent Z' = 1.5 or Z' = 2 Forms of a Sterically Hindered Bis(urea) Clathrate
  A. M. Todd, K. M. Anderson, P. Byrne, A. E. Goeta and J. W. Steed
  Cryst. Growth Des., 2006, 6, 1750.

• Crystal engineering with ethynylbenzenes Part 2. Structures of 4-trimethylsilylethynyl-N,N-dimethylaniline, and 4-ethynyl-N,N-dimethylaniline with Z = 12 and a single-crystal to single-crystal phase transition at 122.5 ± 2 K
  A. S. Batsanov, J. C. Collings, R. M. Ward, A. E. Goeta, L. Porrès, A. Beeby, J. A. K. Howard, J. W. Steed and T. B. Marder
  CrystEngComm, 2006, 622

• Anion-binding mode in a sulfanylphenyl urea complex: solid state symmetry breaking and solution chelation
  J. M. Russell, A. D. M. Parker, I. Radosavljevic-Evans, J. A. K. Howard and J. W. Steed
  CrystEngComm, 2006, 119

• Unusual variations in the incidence of Z' > 1 in oxo-anion structures
  K. M. Anderson, A. E. Goeta, K. S. B. Hancock and J. W. Steed,
  Chem. Commun., 2006, 2138

• Should solid-state molecular packing have to obey the rules of crystallographic symmetry?
  J. W. Steed
  CrystEngComm, 2003, 169

• Weak Interactions Induce Asymmetry in the Crystal Structures of Triaryl Derivatives of Group 14 Elements
  P. D. Prince, G. S. McGrady, and J. W. Steed
  New J. Chem., 2002, 26, 457.
  

• Why do polymorphs form? A single crystal phase transformation from weak dipolar interactions to a sixfold phenyl embrace
  G. S. McGrady, M. Odlyha, P. D. Prince, and J. W. Steed
  CrystEngComm, 2002, 271.
  

• [15]Crown-5: An Unsymmetrical Bifacial Hydrogen-Bond Acceptor in Crystal Engineering
  J. W. Steed, E. Sakellariou, P. C. Junk, and M. Smith
  Chem. Eur. J., 2001, 7, 1240.

For more information on research in our group, please visit our research group homepage.