Synthesis and x-ray study of triferrocenyliodidephosphonium triiodide

Gridunova, G. V.; Shklover, V. E.; Struchkov, Yu. T.; Vil'chevskaya, V. D.; Podobedova, N.L.; Krylova, A. I.

doi:10.1016/s0022-328x(00)87037-0

Cited by 19 publications

(6 citation statements)

References 21 publications

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“…The only crystal structures reported for a 1 : 2 tertiary phosphine-dihalogen adduct have appeared quite recently. The first report of an iodophosphonium triiodide was by Gridunova et al 8 The interaction of the related compounds R 2 PI and RPI 2 with diiodine has also recently been reported and a very interesting variety of layer and helical type structures in the solid state have been established via X-ray crystallography. 10,11 Finally, of relevance to the present study is the recent report of the crystal structure of bromotriphenylphosphonium tribromide, [BrPPh 3 ]Br 3 .…”

Section: Introductionmentioning

confidence: 99%

The reaction of some tertiary phosphines with two mole equivalents of diiodine to produce the iodophosphonium triiodides [R3PI]I3; influence of R in causing subtle variations in solid state structures

Cross¹,

Godfrey²,

McAuliffe³

et al. 1999

J. Chem. Soc., Dalton Trans.

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A variety of R 3 PI 4 compounds have been synthesized and characterised by elemental analysis, NMR and visible spectroscopy. Apart from Ph 3 PI 4 , all are reported for the first time. X-Ray crystallographic studies on two of these materials, Pr i 3 PI 4 and (Pr n 2 N) 3 PI 4 , revealed different solid-state structures which are, in turn, different to both the two polymorphs of Ph 3 PI 4 and Fc 3 PI 4 (Fc = ferrocenyl) the crystal structures of which have been previously reported. The compound Pr i 3 PI 4 exists as [(IPPr i 3 ) 2 I 3 ]I 3 , which contains two [IPPr i 3 ] ϩ cations independently weakly linked to one of the two terminal iodine atoms of the same triiodide anion. The structure also contains a discrete triiodide anion. The compound (Pr n 2 N) 3 PI 4 exhibits very little anion-cation interaction. Of the two molecules present in the asymmetric unit, one exhibits no anion-cation interaction, while the other shows only a very weak contact [d(I-I)] (cation-anion) = 3.944(2) Å.

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Section: Introductionmentioning

confidence: 99%

The reaction of some tertiary phosphines with two mole equivalents of diiodine to produce the iodophosphonium triiodides [R3PI]I3; influence of R in causing subtle variations in solid state structures

Cross¹,

Godfrey²,

McAuliffe³

et al. 1999

J. Chem. Soc., Dalton Trans.

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“…This unusual stoichiometry suggested that the iron in 3 had been oxidized from Fe 2+ to Fe 3+ , and this was confirmed by magnetic measurements (vide infra) and Mössbauer spectroscopy (δ = 0.44 mm s -1 , Δ E Q = 0.23 mm s -1 , at 293 K), which falls in the expected range for Fe 3+ . This is a most remarkable result since treatment of phosphorus donors or sulfur donors bearing ferrocene groups with diiodine usually results in the formation of molecular charge-transfer adducts without simultaneous oxidation of the ferrocenyl groups . Treatment of 2 with IBr gave the same stoichiometry (by elemental analysis) for the resulting product, which was obtained as a microcrystalline material…”

mentioning

confidence: 71%

Structural and Magnetic Properties of a Novel Ferrocenyl−Diiodine Charge Transfer Complex

et al. 2003

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“…In crystals obtained from CH 2 by 31 P-NMR in reaction mixtures is not trivial, because both kinds of cations exihibit similar 31 P-NMR shifts and both participate in interactions with their anions, and in equilibria with uncharged donors: rapid I + transfer reactions and I´´´I soft-soft interactions involving 1, and rapid H + transfer reactions and hydrogen bonds involving i-Pr 3 P=O (7). [14] ist die Topologie von 3 durch Triiodid-Stra È nge gekennzeichnet. Bei 3 sind das Motiv Zickzack-Triiodidketten aus L-fo È rmigen Gruppen von jeweils zwei I 3 ± -Ionen [11].…”

Section: Oxidation Of Triisopropylphosphane With Iodine: the Role Of mentioning

confidence: 99%

Die Oxidation von Triisopropylphosphan mit Iod: Zur Rolle von trockenem und feuchtem Lösungsmittel

Ruthe

Jones

Mont

et al. 2000

Z. anorg. allg. Chem.

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Triisopropylphosphan (1) ergibt mit Iod i‐Pr3PI+I– (2), dessen Iod‐Iod Wechselwirkung aufweisende Ionenpaare als Dichlormethan‐Solvat kristallisieren. Mit weiterem Iod entsteht i‐Pr3PI+I3– (3), aus 2 und AgSbF6 erhält man i‐Pr3PI+SbF6– (6). In Gegenwart von Luftfeuchtigkeit entstehen rasch Triisopropylhydroxyphosphoniumsalze, von denen i‐Pr3POH+I– (4) P–O–H…I‐Wasserstoffbrücken aufweist und (i‐Pr3PO)2H+I3– (5) P=O…H…O=P‐verbrückte Kationen enthält. Die Unterscheidung zwischen Iodphosphoniumionen und Hydroxyphosphoniumionen in Lösung wird dadurch erschwert, daß beide Arten von Kationen ähnliche 31P‐NMR‐Verschiebungen aufweisen und daß beide Kationen Wechselwirkungen mit ihren Anionen und rasche Austauschgleichgewichte eingehen: I+‐Transferreaktionen an 1 und H+‐Transferreaktionen an i‐Pr3P=O (7).

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Synthesis and x-ray study of triferrocenyliodidephosphonium triiodide

Cited by 19 publications

References 21 publications

The reaction of some tertiary phosphines with two mole equivalents of diiodine to produce the iodophosphonium triiodides [R3PI]I3; influence of R in causing subtle variations in solid state structures

The reaction of some tertiary phosphines with two mole equivalents of diiodine to produce the iodophosphonium triiodides [R3PI]I3; influence of R in causing subtle variations in solid state structures

Structural and Magnetic Properties of a Novel Ferrocenyl−Diiodine Charge Transfer Complex

Die Oxidation von Triisopropylphosphan mit Iod: Zur Rolle von trockenem und feuchtem Lösungsmittel

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