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DOI: 10.1039/A706271K (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1997, 4143-4146

Co-existing pseudo-planar and saddle conformers of tetramethyl tetraaza[14]annulene platinum complexes: X-ray crystallographic studies on [PtII(tmtaa)] and trans-[PtIVCl2(tmtaa)][hair space]†

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Rowena L. Paul, Stephen F. Gheller, Graham A. Heath, David C. R. Hockless, Louis M. Rendina and Meta Sterns

Abstract

Orange platelets of [Pt(tmtaa)], where H2tmtaa = 6,8,15,17-tetramethyl-5,6,9,14,15,18-hexahydrodibenzo[b,i[hair space]][l,4,8,11]tetraazacyclotetradecine, show the expected ‘pseudo-planar’ centrosymmetric macrocyclic conformation but red needles of another [Pt(tmtaa)] modification and purple trans-[PtCl2(tmtaa)] both show saddle-form co-ordination with the metal ion only 0.046(1) Å (Pt2+) or 0.024(5) Å (Pt4+) above the N4 plane; X-ray powder diffraction reveals similar dimorphism for [Pd(tmtaa)] but not for [Ni(tmtaa)].

References

  1. F. A. Cotton and J. Czuchajowska, Polyhedron, 1990, 9, 2553 CrossRef CAS.
  2. E. G. Jäger, Z. Anorg. Allg. Chem., 1969, 364, 177 CrossRef.
  3. V. L. Goedken, J. J. Pluth, S.-M. Peng and B. Bursten, J. Am. Chem. Soc., 1976, 98, 8014 CrossRef CAS.
  4. V. L. Goedken, S.-M. Peng, J. Molin-Norris and Y.-A. Park, J. Am. Chem. Soc., 1976, 98, 8391 CrossRef CAS.
  5. V. L. Goedken and M. C. Weiss, Inorg. Synth., 1980, 20, 115.
  6. R. L. Paul, Ph.D. Thesis, The Australian National University, 1997.
  7. M. C. Weiss, B. Bursten, S.-M. Peng and V. L. Goedken, J. Am. Chem. Soc., 1976, 98, 8021 CrossRef CAS.
  8. J. J. H. Edema, S. Gambrotta, P. v. d. Sluis, W. J. J. Smeets and A. L. Spek, Inorg. Chem., 1989, 28, 3782 CrossRef CAS; D. Mandon, J.-M. Giraudon, L. Toupet, J. Sala-Pala and J. E. Guerchais, J. Am. Chem. Soc., 1987, 109, 3490 CrossRef CAS; L. F. Warren and V. L. Goedken, J. Chem. Soc., Chem. Commun., 1978, 909 RSC; S. L. V. Voorhees and B. B. Wayland, Organometallics, 1987, 6, 204 CrossRef.
  9. M. Tsutsui, R. L. Bobsein, G. Cash and R. Pettersen, Inorg. Chem., 1979, 18, 758 CrossRef CAS.
  10. K. M. Kadish, D. Schaeper, L. A. Bottomly, M. Tsutsui and R. L. Bobsein, J. Inorg. Nucl. Chem., 1980, 42, 469 CrossRef CAS.
  11. F. A. Cotton and J. Czuchajowska-Wiesinger, Acta Crystallogr., Sect. C, 1992, 48, 1434 CrossRef; G. Ricciardi, A. Bavaso, A. Rosa, F. Lelj and Y. Cizov, J. Chem. Soc., Dalton Trans., 1995, 2385 RSC.
  12. C. K. Johnson, ORTEP, Report ORNL-3794, Oak Ridge National Laboratory, Oak Ridge, TN, 1965.
  13. R. Cini, F. P. Fanizzi, F. P. Intini and G. Natile, J. Am. Chem. Soc., 1991, 113, 7805 CrossRef CAS; A. A. Siderov, M. O. Ponina, S. E. Nefedov, I. L. Eremenko, Yu. A. Ustynyuk and Yu. M. Luzikov, Russ. J. Inorg. Chem. (Engl. Transl.), 1997, 42, 952.
  14. L. A. M. Baxter, G. A. Heath, R. G. Raptis and A. C. Willis, J. Am. Chem. Soc., 1992, 114, 6944 CrossRef CAS.
  15. P. D. Prenzler, G. A. Heath, S. B. Lee and R. G. Raptis, Chem. Commun., 1996, 2271 RSC.
  16. D. C. R. Hockless and R. L. Paul, unpublished work.
  17. M. A. Keniry and R. L. Paul, unpublished work.
  18. Y. Wang, S. M. Peng, Y.-L. Lee, M. C. Chuang, C. P. Tang and C.-J. Wang, J. Chin. Chem., 1982, 29, 217 Search PubMed cf. Cambridge Crystallographic Database, BOSVOU, MDAT 880414.
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