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<title>UTas ePrints - Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4]</title>
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<meta content="Arnold, A.P." name="eprints.creators_name" />
<meta content="Canty, A.J." name="eprints.creators_name" />
<meta content="Skelton, B.W." name="eprints.creators_name" />
<meta content="White, A.H." name="eprints.creators_name" />
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<meta content="Allan.Canty@utas.edu.au" name="eprints.creators_id" />
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<meta content="Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4]" name="eprints.title" />
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<meta content="The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction at 295 K and
refined by least squares to residuals of 0.044,0.046,0.058 for 818,1678,2016 independent 'observed' reflections
respectively. For all compounds, crystals are monoclinic, space group P21/c. For Hg(SeMe)2, a = 8.440(4),
b = 10.732(3), c = 6.681 (3) A, beta = 96.14(4), and Z = 4. For [{HgCl(py)(SeEt)}4] (py = pyridine), a =
8.044(5), b = 17.387(14), c = 15.585(21) A, beta = 101.75(2), Z = 2. For [(HgCl(py)0.5(SeBut)}4] a = 12.151 (5), b = 16.738(7), c = 10.138(6) A, beta = 90.93(4), and Z = 2. Crystals of Hg(SeMe)2 contain infinite one-dimensional chains along b, the pseudo-tetrahedral mercury atoms being bridged by pairs of selenium atoms; Hg-Se bond distances are in the range 2.614(2)-2.764(2) A. The complexes [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4] were obtained from pyridine solutions containing Hg(SeR)2 and HgCl2, and both contain an eight-membered ring (-Hg-SeR-)4. The former contains two independent pseudo-tetrahedrally co-ordinated mercury atoms, 'Hg(mu-SeEt)2Cl(py)'; the latter contains two inversion related mercury atoms, 'Hg(mu-SeBut)2Cl(py)', and two other inversion related mercury atoms linked by a dichloro-bridge 'Hg(mu-SeBut)2(mu-Cl)2'.
The structure of [{HgCl(py)0.5(SeBut)}4] is very similar to those of [{HgCI(L)0.5(SBut)}4] (L = py or 4-methylpyridine) and is isomorphous with the 4-methylpyridine analogue. Mercury-selenium bond distances are slightly shorter than expected by comparison with covalent radii of sulphur and selenium." name="eprints.abstract" />
<meta content="1982" name="eprints.date" />
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<meta content="Journal of the Chemical Society, Dalton Transactions" name="eprints.publication" />
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<meta content="607-613" name="eprints.pagerange" />
<meta content="10.1039/DT9820000607" name="eprints.id_number" />
<meta content="TRUE" name="eprints.refereed" />
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<meta content="40, 2268.
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A. J. Canty, C. L. Raston, and A. H. White, Aust. J. Chem.,
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Report TR-446, ed. J. M. Stewart, Computer Science Centre,
University of Maryland, U.S.A.
27 L. Pauling, ' The Nature of the Chemical Bond,' 3rd edn.,
Cornell University Press, Ithaca, New York, 1960, p. 225.
28 P. Coppens, Y. W. Yang, R. H. Blessing, W. F. Cooper, and
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" name="eprints.referencetext" />
<meta content="Arnold, A.P. and Canty, A.J. and Skelton, B.W. and White, A.H. (1982) Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4]. Journal of the Chemical Society, Dalton Transactions, 3 . pp. 607-613. ISSN 1477-9226" name="eprints.citation" />
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<meta content="Arnold, A.P." name="DC.creator" />
<meta content="Canty, A.J." name="DC.creator" />
<meta content="Skelton, B.W." name="DC.creator" />
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<meta content="The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction at 295 K and
refined by least squares to residuals of 0.044,0.046,0.058 for 818,1678,2016 independent 'observed' reflections
respectively. For all compounds, crystals are monoclinic, space group P21/c. For Hg(SeMe)2, a = 8.440(4),
b = 10.732(3), c = 6.681 (3) A, beta = 96.14(4), and Z = 4. For [{HgCl(py)(SeEt)}4] (py = pyridine), a =
8.044(5), b = 17.387(14), c = 15.585(21) A, beta = 101.75(2), Z = 2. For [(HgCl(py)0.5(SeBut)}4] a = 12.151 (5), b = 16.738(7), c = 10.138(6) A, beta = 90.93(4), and Z = 2. Crystals of Hg(SeMe)2 contain infinite one-dimensional chains along b, the pseudo-tetrahedral mercury atoms being bridged by pairs of selenium atoms; Hg-Se bond distances are in the range 2.614(2)-2.764(2) A. The complexes [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4] were obtained from pyridine solutions containing Hg(SeR)2 and HgCl2, and both contain an eight-membered ring (-Hg-SeR-)4. The former contains two independent pseudo-tetrahedrally co-ordinated mercury atoms, 'Hg(mu-SeEt)2Cl(py)'; the latter contains two inversion related mercury atoms, 'Hg(mu-SeBut)2Cl(py)', and two other inversion related mercury atoms linked by a dichloro-bridge 'Hg(mu-SeBut)2(mu-Cl)2'.
The structure of [{HgCl(py)0.5(SeBut)}4] is very similar to those of [{HgCI(L)0.5(SBut)}4] (L = py or 4-methylpyridine) and is isomorphous with the 4-methylpyridine analogue. Mercury-selenium bond distances are slightly shorter than expected by comparison with covalent radii of sulphur and selenium." name="DC.description" />
<meta content="1982" name="DC.date" />
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<meta content="Arnold, A.P. and Canty, A.J. and Skelton, B.W. and White, A.H. (1982) Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4]. Journal of the Chemical Society, Dalton Transactions, 3 . pp. 607-613. ISSN 1477-9226" name="DC.identifier" />
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<h1 class="ep_tm_pagetitle">Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4]</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Arnold, A.P.</span> and <span class="person_name">Canty, A.J.</span> and <span class="person_name">Skelton, B.W.</span> and <span class="person_name">White, A.H.</span> (1982) <xhtml:em>Mercury(II) Selenolates. Crystal Structures of Polymeric Hg(SeMe)2 and the Tetrameric Pyridinates [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4].</xhtml:em> Journal of the Chemical Society, Dalton Transactions, 3 . pp. 607-613. 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/2816/1/Dalton1982_2C_607.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2816/1/Dalton1982_2C_607.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />719Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="4008" name="docid" 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/DT9820000607">http://dx.doi.org/10.1039/DT9820000607</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction at 295 K and
refined by least squares to residuals of 0.044,0.046,0.058 for 818,1678,2016 independent 'observed' reflections
respectively. For all compounds, crystals are monoclinic, space group P21/c. For Hg(SeMe)2, a = 8.440(4),
b = 10.732(3), c = 6.681 (3) A, beta = 96.14(4), and Z = 4. For [{HgCl(py)(SeEt)}4] (py = pyridine), a =
8.044(5), b = 17.387(14), c = 15.585(21) A, beta = 101.75(2), Z = 2. For [(HgCl(py)0.5(SeBut)}4] a = 12.151 (5), b = 16.738(7), c = 10.138(6) A, beta = 90.93(4), and Z = 2. Crystals of Hg(SeMe)2 contain infinite one-dimensional chains along b, the pseudo-tetrahedral mercury atoms being bridged by pairs of selenium atoms; Hg-Se bond distances are in the range 2.614(2)-2.764(2) A. The complexes [{HgCl(py)(SeEt)}4] and [{HgCl(py)0.5(SeBut)}4] were obtained from pyridine solutions containing Hg(SeR)2 and HgCl2, and both contain an eight-membered ring (-Hg-SeR-)4. The former contains two independent pseudo-tetrahedrally co-ordinated mercury atoms, 'Hg(mu-SeEt)2Cl(py)'; the latter contains two inversion related mercury atoms, 'Hg(mu-SeBut)2Cl(py)', and two other inversion related mercury atoms linked by a dichloro-bridge 'Hg(mu-SeBut)2(mu-Cl)2'.
The structure of [{HgCl(py)0.5(SeBut)}4] is very similar to those of [{HgCI(L)0.5(SBut)}4] (L = py or 4-methylpyridine) and is isomorphous with the 4-methylpyridine analogue. Mercury-selenium bond distances are slightly shorter than expected by comparison with covalent radii of sulphur and selenium.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><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/250200.html">250000 Chemical Sciences > 250200 Inorganic Chemistry</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2816</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">11 Jan 2008 08:36</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">11 Jan 2008 08:36</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=2816;">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=2816">item control page</a></p>
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