Complexes of 2,3-bis(diphenylphosphino)propene with PtII, PdII and RuII: synthesis, characterisation and rearrangements to complexes of cis-1,2-bis(diphenylphosphino)propene

Barkley, James V.; Higgins, Simon J.; McCart, Mark K.

doi:10.1039/a801351i

Cited by 6 publications

(5 citation statements)

References 18 publications

(26 reference statements)

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“…In each derivative, there is a four-membered ring PNP 9,11,12 or PCP 10 plus a five-membered ring PCCP 9,10 or sixmembered ring PCHCP 11 or PNPNP. 12 14 [Pt(η 2 -dppe) 2 ]X 2 (X = Cl 15 or I 16 ), [Pt(η 2 -dppen) 2 ](BPh 4 ) 2 , 17 [Pt(η 2 -dppe) 2 ][PtCl 3 (η 2 -C 2 H 4 )] 2 , 18 and [Pt(η 2 -dppm) 2 ](BF 4 ) 2 19 have a pair of bidentate ligands, each of the pair forms five-membered metallocyclic rings {PCCP} with the mean P Pt P "bite" angles of 84.3 • (range 82.0-86.3 • ). The Pt P bond distances range from 2.28 to 2.335 Å (average 2.31 Å).…”

Section: Ptp 4 Derivativesmentioning

confidence: 99%

“…Both Pt(II) atoms have a distorted square planar arrangement with the chromophores PtP 3 Cl and PtCl 2 P 2 . The chelating ligand created four-membered metallocycles about each Pt(II) atom with μ-P Pt P (PtP 3 Cl) and μP Pt P (PtCl 2 P 2 ) bite angles of Downloaded by [Queensland University of Technology] at 09: 19 In triclinic [(η 2 -dppm)Pt(μ-η 2 -tt) 2 Pt(η 2 -dppm)], 133 two equivalent Pt(η 2 -dppm) units are double-bridged by a pair of 8-thiotheophyline divalent anions (tt) in a head-to-tail arrangement. The Pt····Pt distance in the eight-membered Pt(NCS) 2 Pt central ring is 4.212 Å.…”

Section: Ptp 2 Xy Derivativesmentioning

confidence: 99%

“…There are almost 150 monomeric Pt(II) complexes, in which a square planar geometry with different degrees of distortion at the Pt(II) atoms is built up by two chelated P,P ligands [5][6][7][9][10][11][12][13][14][15][16][17][18][19][20][21][22]42 ; one chelated P,P ligand with two unidentate ligands 1-4, The [ClPt(μ-η 2 -dchp) 2 PtCl] 126 that exists in two isomeric forms, orthorhombic and monoclinic, exhibit a pair of dchp ligands acting as bidentate ligand (P,P ). Each of the ligand with one P atom terminally bounds to Pt and another P atom serves as bridge between two PtCl units.…”

Section: Ptp 2 Xy Derivativesmentioning

confidence: 99%

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Organodiphosphines in Pt(II) coordination complexes

Melnı́k

Mikuš

2014

Phosphorus, Sulfur, and Silicon and the Related Elements

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Organodiphosphines are very useful as soft P,P donor ligands in the chemistry of platinum. In this review are summarized and analyzed almost 200 Pt(II) complexes that contain at least one organodiphosphine ligand. There are Pt(II) atoms in a square planar environment with a wide variability of inner coordination spheres: PtP 4 , PtP 3 X (X = H, Cl, S, Br), PtX 2 P 2 (X = O, N, C, B, Cl (most common), S, Br, Se, Si, I, Te), PtP 2 XY (XY = H+O, H+Cl, H+Si, O+N, O+Si, N+S, N+Se, Cl+Si). The cis derivatives, by far, prevail. There are four basic Pt P (organodiphosphine) bond distances and their mean values elongated in the order: 2.270 Å (chelated) < 2.290 Å (bridged) < 2.322 Å (trans to C) < 2.348 Å (trans to H). Organodiphosphines form a wide variability of metallocycles from 4-to even 20-membered, with 4-and 5-membered being the most common ring size. Some examples exist as isomers, differing mostly by the degree of distortion and are examples of distortion isomerism. In the series of monomeric Pt(II) complexes, the mean Pt P (bidentate) bond distance elongated in the order: 2.235 Å (PtP 2 X 2 ) < 2.270 Å (PtP 2 XY) < 2.290 Å (PtP 3 X) < 2.320 Å (PtP 4 ).

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Section: Ptp 4 Derivativesmentioning

confidence: 99%

Section: Ptp 2 Xy Derivativesmentioning

confidence: 99%

Section: Ptp 2 Xy Derivativesmentioning

confidence: 99%

See 1 more Smart Citation

Organodiphosphines in Pt(II) coordination complexes

Melnı́k

Mikuš

2014

Phosphorus, Sulfur, and Silicon and the Related Elements

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“…These isomers tend to have nearly equal energy levels for the cis and trans isomers, making it more challenging to regulate their isomerism. While several studies have reported successful crystallization of these isomers [15][16][17][18], achieving structural control of geometric isomers through chemical reactions remains elusive.…”

Section: Introductionmentioning

confidence: 99%

Trans-to-cis isomerization of a platinum(II) complex with two triphosphine ligands via coordination with gold(I) ion

Nagasato,

Baba,

Soma

et al. 2024

Preprint

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The reaction of a square-planar platinum(II) complex having two bis(2-diphenylphosphinoethyl)phenylphosphine (triphos), [Pt(triphos)2](NO3)2 ([1](NO3)2), with [Au(tu)2]Cl (tu = thiourea) gave a new trinuclear AuI2PtII complex, [{Pt(triphos)2}{Au(tu)}2]Cl2(NO3)2 ([2]Cl2(NO3)2), through the Au-P coordination bond formation. While the [Pt(triphos)2]2+ unit in [1](NO3)2 adopted the trans-meso configuration, only the cis-racemic isomer was observed in [2]Cl2(NO3)2. The 31P NMR spectroscopy indicated a rapid equilibrium among the possible isomers of [1]2+, facilitating the unique trans-to-cis transformation at the PtII center in this system. Additionally, we observed that this structural transformation leads to an enhancement of the emission intensity.

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“…These isomers tend to have nearly equal energy levels for the cis and trans isomers, so it is more challenging to regulate isomerism. While several studies have reported crystallization of these isomers [15][16][17][18], structural control of the geometric isomers through chemical reactions remains elusive.…”

Section: Introductionmentioning

confidence: 99%

Trans-to-cis isomerization of a platinum(II) complex with two triphosphine ligands via coordination with gold(I) ions

Nagasato,

Baba,

Soma

et al. 2024

J Incl Phenom Macrocycl Chem

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The reaction of a square-planar platinum(II) complex containing two bis(2-diphenylphosphinoethyl)phenylphosphine (triphos), [Pt(triphos)2](NO3)2, with [Au(tu)2]Cl (tu = thiourea) gave a new trinuclear AuI2PtII complex, [Pt(triphos)2{Au(tu)}2]Cl2(NO3)2, through Au-P coordination. While the [Pt(triphos)2]2+ unit in [Pt(triphos)2](NO3)2 adopted the trans-meso configuration, only the cis-racemic isomer was observed for [Pt(triphos)2{Au(tu)}2]Cl2(NO3)2. 31P NMR spectroscopy indicated rapid equilibrium among the possible isomers of [Pt(triphos)2]2+, which facilitated the trans-to-cis transformation at the PtII center in this system. Additionally, we observed that this structural transformation led to an increase in the emission intensity.

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Complexes of 2,3-bis(diphenylphosphino)propene with PtII, PdII and RuII: synthesis, characterisation and rearrangements to complexes of cis-1,2-bis(diphenylphosphino)propene

Cited by 6 publications

References 18 publications

Organodiphosphines in Pt(II) coordination complexes

Organodiphosphines in Pt(II) coordination complexes

Trans-to-cis isomerization of a platinum(II) complex with two triphosphine ligands via coordination with gold(I) ion

Trans-to-cis isomerization of a platinum(II) complex with two triphosphine ligands via coordination with gold(I) ions

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