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<title>UTas ePrints - Co-ordination Chemistry of Dimethylgold(III). Synthesis, Structural Studies, and Fluxional Behaviour of Complexes with Polydentate Ligands</title>
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<meta content="Canty, A.J." name="eprints.creators_name" />
<meta content="Minchin, N.J." name="eprints.creators_name" />
<meta content="Patrick, J.M." name="eprints.creators_name" />
<meta content="Skelton, B.W." name="eprints.creators_name" />
<meta content="White, A.H." name="eprints.creators_name" />
<meta content="allan.canty@utas.edu.au" name="eprints.creators_id" />
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<meta content="Co-ordination Chemistry of Dimethylgold(III). Synthesis, Structural Studies, and Fluxional Behaviour of Complexes with Polydentate Ligands" name="eprints.title" />
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<meta content="Dimethylgold(III) nitrate forms complexes [AuMe2L]NO3 with polydentate nitrogen-donor ligands (L) containing N-methylimidazol-2-yI (mim) and pyridin-2-yl (py) groups: (mim)2CHOH, (mim)3COH, (py)(mim)2COH, and (py)2(mim)COH. The structures of [AuMe2{(py)(mim)2COH)]NO3 and
[AuMe2{B(pz)4}], where [B(pz)4]- is tetrakis(pyrazo1-1-yl)borate, have been determined by single crystal X-ray diffraction at 295 K and refined by least-squares methods to R 0.034 and 0.040 for 2801 and 2240 independent 'observed' reflections, respectively. The complexes have square planar geometry for gold, 'cis-Me2Au(mim)2' in the (py)(mim)2COH complex and 'cis-Me2Au(pz)2'
in the [B(pz)4]- complex, with one unco-ordinated pyridine and two unco-ordinated pyrazole rings, respectively. The complexes [AuMe2L]NO3 [L = (mim)3COH or (py)2(mim)COH] in CD3OD, and monoprotonated complexes of poly(pyrazo1-1-yl)borate ligands, [AuMe2{HB(pz)2(Hpz))]+ and
[AuMe2{B(pz)3(Hpz)}]+, in (CD3)2SO-D2O, exhibit complex variable-temperature 1H n.m.r. spectra consistent with fluxional behaviour involving five-co-ordinate intermediates. In addition, the spectra show that [AuMe2{(py)2(mim)COH)]NO3 in solution exists as two structural isomers, involving 'cis-Me2Au(py)(mim)' and 'cis-Me2Au(py)2' environments in the ratio ca. 5: 1." name="eprints.abstract" />
<meta content="1985" name="eprints.date" />
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<meta content="Journal of the Chemical Society, Dalton Transactions" name="eprints.publication" />
<meta content="6" name="eprints.volume" />
<meta content="1183-1189" name="eprints.pagerange" />
<meta content="10.1039/DT9850001183" name="eprints.id_number" />
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1 A. J. Canty, N. J. Minchin, P. C. Healy, and A. H. White, J. Chem.
2 A. J. Canty, N. J. Minchin, J. M. Patrick, and A. H. White, Aust. J.
3 A. J. Canty, N. Chaichit, B. M. Gatehouse, and E. E. George, Inorg.
SOC., Dalton Trans., 1982, 1795.
Chem., 1983,36, 1107.
Chem., 1981, 20, 4293.
4 A. J. Canty, J. M. Patrick, and A. H. White, J. Chem. SOC., Dalton
5 A. J. Canty and C. V. Lee, unpublished work.
6 A. J. Canty, J. M. Patrick, and A. H. White, Inorg. Chem., 1984, 23,
7 P. Gans, A. Sabatini, and A. Vacca, Inorg. Chim. Acta, 1976, 18,237.
8 R. N. Sylva and M. R. Davidson, J. Chem. SOC.D, alton Trans., 1979,
9 See, for example, S. Trofimenko, J. Am. Chem. SOC., 1967,89,3170.
10 H. Hagnauer, G. C. Stocco, and R. S. Tobias, J. Organornet. Chem.,
11 R. S. Brown and J. Huguet, Can. J. Chem., 1980,58, 889.
12 A. J. Canty, E. E. George, and C. V. Lee, Aust. J. Chem., 1983,36,415.
13 F. H. Brain and C. S. Gibson, J. Chem. SOC., 1931, 762.
14 A. J. Canty and A. Marker, Inorg. Chem., 1976, 15,425.
15 A. J. Canty, N. Chaichit, B. M. Gatehouse, E. E. George, and G.
16 A. J. Canty and C. V. Lee, Organometallics, 1982, 1, 1063.
17 J. A. Ibers and W. C. Hamilton (eds.), 'International Tables for X-Ray
Crystallography,' Kynoch Press, Birmingham, 1974, vol. 4.
18 The X-RAY System and the XTAL System, Technical Reports, TR-
446 and TR-1364, Computer Science Center, University of
Maryland, 1976 and 1983." name="eprints.referencetext" />
<meta content="Canty, A.J. and Minchin, N.J. and Patrick, J.M. and Skelton, B.W. and White, A.H. (1985) Co-ordination Chemistry of Dimethylgold(III). Synthesis, Structural Studies, and Fluxional Behaviour of Complexes with Polydentate Ligands. Journal of the Chemical Society, Dalton Transactions, 6 . pp. 1183-1189. ISSN 1477-9226" name="eprints.citation" />
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<meta content="Minchin, N.J." name="DC.creator" />
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<meta content="Dimethylgold(III) nitrate forms complexes [AuMe2L]NO3 with polydentate nitrogen-donor ligands (L) containing N-methylimidazol-2-yI (mim) and pyridin-2-yl (py) groups: (mim)2CHOH, (mim)3COH, (py)(mim)2COH, and (py)2(mim)COH. The structures of [AuMe2{(py)(mim)2COH)]NO3 and
[AuMe2{B(pz)4}], where [B(pz)4]- is tetrakis(pyrazo1-1-yl)borate, have been determined by single crystal X-ray diffraction at 295 K and refined by least-squares methods to R 0.034 and 0.040 for 2801 and 2240 independent 'observed' reflections, respectively. The complexes have square planar geometry for gold, 'cis-Me2Au(mim)2' in the (py)(mim)2COH complex and 'cis-Me2Au(pz)2'
in the [B(pz)4]- complex, with one unco-ordinated pyridine and two unco-ordinated pyrazole rings, respectively. The complexes [AuMe2L]NO3 [L = (mim)3COH or (py)2(mim)COH] in CD3OD, and monoprotonated complexes of poly(pyrazo1-1-yl)borate ligands, [AuMe2{HB(pz)2(Hpz))]+ and
[AuMe2{B(pz)3(Hpz)}]+, in (CD3)2SO-D2O, exhibit complex variable-temperature 1H n.m.r. spectra consistent with fluxional behaviour involving five-co-ordinate intermediates. In addition, the spectra show that [AuMe2{(py)2(mim)COH)]NO3 in solution exists as two structural isomers, involving 'cis-Me2Au(py)(mim)' and 'cis-Me2Au(py)2' environments in the ratio ca. 5: 1." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Co-ordination Chemistry of Dimethylgold(III). Synthesis, Structural Studies, and Fluxional Behaviour of Complexes with Polydentate Ligands</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Canty, A.J.</span> and <span class="person_name">Minchin, N.J.</span> and <span class="person_name">Patrick, J.M.</span> and <span class="person_name">Skelton, B.W.</span> and <span class="person_name">White, A.H.</span> (1985) <xhtml:em>Co-ordination Chemistry of Dimethylgold(III). Synthesis, Structural Studies, and Fluxional Behaviour of Complexes with Polydentate Ligands.</xhtml:em> Journal of the Chemical Society, Dalton Transactions, 6 . pp. 1183-1189. ISSN 1477-9226</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2850/1/Dalton1985_2C_1183.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2850/1/Dalton1985_2C_1183.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />759Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="4073" name="docid" accept-charset="utf-8" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1039/DT9850001183">http://dx.doi.org/10.1039/DT9850001183</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Dimethylgold(III) nitrate forms complexes [AuMe2L]NO3 with polydentate nitrogen-donor ligands (L) containing N-methylimidazol-2-yI (mim) and pyridin-2-yl (py) groups: (mim)2CHOH, (mim)3COH, (py)(mim)2COH, and (py)2(mim)COH. The structures of [AuMe2{(py)(mim)2COH)]NO3 and
[AuMe2{B(pz)4}], where [B(pz)4]- is tetrakis(pyrazo1-1-yl)borate, have been determined by single crystal X-ray diffraction at 295 K and refined by least-squares methods to R 0.034 and 0.040 for 2801 and 2240 independent 'observed' reflections, respectively. The complexes have square planar geometry for gold, 'cis-Me2Au(mim)2' in the (py)(mim)2COH complex and 'cis-Me2Au(pz)2'
in the [B(pz)4]- complex, with one unco-ordinated pyridine and two unco-ordinated pyrazole rings, respectively. The complexes [AuMe2L]NO3 [L = (mim)3COH or (py)2(mim)COH] in CD3OD, and monoprotonated complexes of poly(pyrazo1-1-yl)borate ligands, [AuMe2{HB(pz)2(Hpz))]+ and
[AuMe2{B(pz)3(Hpz)}]+, in (CD3)2SO-D2O, exhibit complex variable-temperature 1H n.m.r. spectra consistent with fluxional behaviour involving five-co-ordinate intermediates. In addition, the spectra show that [AuMe2{(py)2(mim)COH)]NO3 in solution exists as two structural isomers, involving 'cis-Me2Au(py)(mim)' and 'cis-Me2Au(py)2' environments in the ratio ca. 5: 1.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/259901.html">250000 Chemical Sciences > 259900 Other Chemical Sciences > 259901 Organometallic Chemistry</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2850</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Prof Allan J Canty</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">14 Jan 2008 09:00</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">14 Jan 2008 09:00</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2850;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2850">item control page</a></p>
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