2010
DOI: 10.1039/b912678c
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Tripodal polyphosphine ligands as inductors of chelate ring-opening processes in mononuclear palladium(ii) and platinum(ii) compounds. The X-ray crystal structure of two derivatives containing dangling phosphorus

Abstract: The reaction of NP(3) (tris[2-(diphenylphosphino)ethyl]amine and PP(3) (tris[2-(diphenylphosphino)ethyl]phosphine) with the five-coordinate complexes [PdCl(NP(3))]Cl (1) and [MX(PP(3))]X [M = Pd: X = Cl(2), Br(3), I(4); M = Pt: X = Cl(5), Br(6), I(7)], respectively, followed by (31)P{(1)H}NMR when X = Cl, led to the formation of unprecedented four-coordinate halides in a 1 : 2 metal to ligand ratio, [M(AP(3))(2)]X(2) [A = N, M = Pd: X = Cl(8); A = P, M = Pd: X = Cl(9), Br(10), I(11); A = P, M = Pt: X = Cl(12),… Show more

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Cited by 9 publications
(3 citation statements)
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“…On the other hand, the number of bond critical points representing the interactions suggests a coordination number of 5. In analogy with the limited number of reported examples with 5-coordinated silver centers, we therefore describe the silver centers in the [Ag­( PS 3 )] 2 2+ units as 5-coordinated. The structural parameter value of τ 5 = 0.47 indicates that the coordination around the silver atom is intermediate between trigonal bipyramidal and square pyramidal. , …”
Section: Results and Discussionmentioning
confidence: 99%
“…On the other hand, the number of bond critical points representing the interactions suggests a coordination number of 5. In analogy with the limited number of reported examples with 5-coordinated silver centers, we therefore describe the silver centers in the [Ag­( PS 3 )] 2 2+ units as 5-coordinated. The structural parameter value of τ 5 = 0.47 indicates that the coordination around the silver atom is intermediate between trigonal bipyramidal and square pyramidal. , …”
Section: Results and Discussionmentioning
confidence: 99%
“…5, 66.3, 30.5 and δ 53.3, 42.7, 29.7, respectively, with an 1 : 1.2 integration ratio attributed to P D : P E : P F (Scheme S1 †). The 1 J( 10 The reaction of iodides 5a and 6a with two equivalents of SnI 2 proceeds in air in the presence or absence of PPh 3 giving the unusual neutral compounds 9•3H 2 O and 10•3H 2 O, where PP 3 is acting as a bidentate ligand through the central and one terminal P with the remaining two P being oxidised and bound to SnI 2 moieties. The conductivity measurements for 9•3H 2 O in DMF (0.2 ohm −1 cm 2 mol −1 ) confirm the non-electrolyte behaviour.…”
Section: Paper Dalton Transactionsmentioning
confidence: 99%
“…S5, Scheme S1 †) confirms the same structure in solution with 1 J( 31 P D -195 Pt) = 2254 Hz < 1 J( 31 P E -195 Pt) = 2402 Hz in the expected range. 10 The rare neutral iodo complex 9 was also afforded in solution in coexistence with the unexpected oxidised forms [PdI 2 (PP(PO) 2 )] ( 9…”
Section: Dalton Transactions Papermentioning
confidence: 99%