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Hydrogen bond network structures based on sulfonated phosphine ligands: The effects of complex geometry, cation substituents and phosphine oxidation on guanidinium sulfonate sheet formation

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Title: Hydrogen bond network structures based on sulfonated phosphine ligands: The effects of complex geometry, cation substituents and phosphine oxidation on guanidinium sulfonate sheet formation
Authors: Burke, Nichola J.1, Burrows, Andrew D.1 a.d.burrows@bath.ac.uk, Mahon, Mary F.1 m.f.mahon@bath.ac.uk, Warren, John E.2
Source: Inorganica Chimica Acta. Aug2006, Vol. 359 Issue 11, p3497-3506. 10p.
Subjects: Hydrogen bonding, Phosphine, Geometry, Oxidation, Complex geometry
Abstract: Abstract: Interactions between guanidinium cations and the sulfonate groups on the phosphine [PPh2C6H4-m-SO3]− have been exploited to incorporate iridium(I) centres into hydrogen-bonded networks. The crystal structure of [C(NH2)3]2{trans-[IrCl(CO)(PPh2C6H4-m-SO3)2]} (4) contains hexagonal guanidinium sulfonate (GS) sheets in which both of the sulfonate groups from each complex anion form hydrogen bonds within the same sheet. The crystal structures of [C(NH2)2(NHMe)][PPh2C6H4-m-SO3] (5) and [C(NH2)2(NHEt)][PPh2C6H4-m-SO3] (6) reveal that the GS sheets can tolerate the loss of one hydrogen bond donor, though twisting occurs to accommodate the alkyl group. However, the crystal structure of [C(NH2)2(NMe2)][PPh2C6H4-m-SO3] (7) shows that ribbon structures are formed instead of sheets when two hydrogen bond donors are lost. The compound [C(NH2)2(NHMe)]2{trans-[IrCl(CO)(PPh2C6H4-m-SO3)2]}·3/8H2O (8) contains hydrogen-bonded cylinders as opposed to sheets. This is a likely consequence of a mismatch between the intramolecular S⋯S distance present in the anion, and the closer S⋯S distance present in a twisted GS sheet such as that in 5. The crystal structures of [C(NH2)2(NHEt)][P(O)Ph2C6H4-m-SO3] (9) and [C(NH2)2(NMe2)][P(O)Ph2C6H4-m-SO3]·H2O (10) show that the phosphine oxide group successfully competes with the sulfonate as a hydrogen bond acceptor. The crystal structure of 9 contains hydrogen-bonded ribbons that are interlinked through the anions which act as pillars to form a layer structure. In contrast, the crystal structure of 10 contains hydrogen-bonded sheets that involve cations, sulfonate groups, phosphine oxides and the included water molecule. These sheets are linked into a three-dimensional network through the anion pillars. [Copyright &y& Elsevier]
Copyright of Inorganica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Hydrogen bond network structures based on sulfonated phosphine ligands: The effects of complex geometry, cation substituents and phosphine oxidation on guanidinium sulfonate sheet formation
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  Data: <searchLink fieldCode="AR" term="%22Burke%2C+Nichola+J%2E%22">Burke, Nichola J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Burrows%2C+Andrew+D%2E%22">Burrows, Andrew D.</searchLink><relatesTo>1</relatesTo><i> a.d.burrows@bath.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Mahon%2C+Mary+F%2E%22">Mahon, Mary F.</searchLink><relatesTo>1</relatesTo><i> m.f.mahon@bath.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Warren%2C+John+E%2E%22">Warren, John E.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Inorganica+Chimica+Acta%22">Inorganica Chimica Acta</searchLink>. Aug2006, Vol. 359 Issue 11, p3497-3506. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Hydrogen+bonding%22">Hydrogen bonding</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphine%22">Phosphine</searchLink><br /><searchLink fieldCode="DE" term="%22Geometry%22">Geometry</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Complex+geometry%22">Complex geometry</searchLink>
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  Data: Abstract: Interactions between guanidinium cations and the sulfonate groups on the phosphine [PPh2C6H4-m-SO3]− have been exploited to incorporate iridium(I) centres into hydrogen-bonded networks. The crystal structure of [C(NH2)3]2{trans-[IrCl(CO)(PPh2C6H4-m-SO3)2]} (4) contains hexagonal guanidinium sulfonate (GS) sheets in which both of the sulfonate groups from each complex anion form hydrogen bonds within the same sheet. The crystal structures of [C(NH2)2(NHMe)][PPh2C6H4-m-SO3] (5) and [C(NH2)2(NHEt)][PPh2C6H4-m-SO3] (6) reveal that the GS sheets can tolerate the loss of one hydrogen bond donor, though twisting occurs to accommodate the alkyl group. However, the crystal structure of [C(NH2)2(NMe2)][PPh2C6H4-m-SO3] (7) shows that ribbon structures are formed instead of sheets when two hydrogen bond donors are lost. The compound [C(NH2)2(NHMe)]2{trans-[IrCl(CO)(PPh2C6H4-m-SO3)2]}·3/8H2O (8) contains hydrogen-bonded cylinders as opposed to sheets. This is a likely consequence of a mismatch between the intramolecular S⋯S distance present in the anion, and the closer S⋯S distance present in a twisted GS sheet such as that in 5. The crystal structures of [C(NH2)2(NHEt)][P(O)Ph2C6H4-m-SO3] (9) and [C(NH2)2(NMe2)][P(O)Ph2C6H4-m-SO3]·H2O (10) show that the phosphine oxide group successfully competes with the sulfonate as a hydrogen bond acceptor. The crystal structure of 9 contains hydrogen-bonded ribbons that are interlinked through the anions which act as pillars to form a layer structure. In contrast, the crystal structure of 10 contains hydrogen-bonded sheets that involve cations, sulfonate groups, phosphine oxides and the included water molecule. These sheets are linked into a three-dimensional network through the anion pillars. [Copyright &y& Elsevier]
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  Group: Ab
  Data: <i>Copyright of Inorganica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ica.2006.01.008
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        Text: English
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        PageCount: 10
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      – SubjectFull: Hydrogen bonding
        Type: general
      – SubjectFull: Phosphine
        Type: general
      – SubjectFull: Geometry
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Complex geometry
        Type: general
    Titles:
      – TitleFull: Hydrogen bond network structures based on sulfonated phosphine ligands: The effects of complex geometry, cation substituents and phosphine oxidation on guanidinium sulfonate sheet formation
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              Text: Aug2006
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              Y: 2006
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