Synthesis and crystallographic characterization of a ‘palladadehydrobenzo[19]annulene’

Pak, Joshua J.; Darwish, Ossama Saleh; Weakley, Timothy J. R.; Haley, Michael M.

doi:10.1016/s0022-328x(03)00707-1

Cited by 3 publications

(1 citation statement)

References 61 publications

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“…Smaller degrees of distortion (C9 7.0°, C10 1.9°) are also observed on the monoyne sides. Despite bond angle distortion, Pt−C and Pt−P bond lengths are consistent with other observed Pt-σ-acetylides. ,,,, Similar to our previously synthesized metalla-annulenes, 6b, a distinct nonplanarity of the hydrocarbon ligand is observed. The planes of all three phenyl rings are bent with respect to each other as well as twisted.…”

Section: Resultssupporting

confidence: 88%

Selective Metallacyclization and Crystallographic Characterization of Structurally Related Platina-annulenes

Johnson¹,

Haley²,

Rather³

et al. 2005

Organometallics

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The synthesis and characterization of seven platina-annulenes and their dehydrobenzoannulene (DBA) analogues are reported. Assembly of these macrocycles is accomplished via Sn transmetalation or amine-mediated oxidative addition with stoichiometric PtCl 2 (PR 3 ) 2 , containing different phosphine ligands, and CuI. In contrast to previously reported DBA cyclization methodology, incorporation of a doubly σ-bonded Pt complex into the annulene backbone resulted in selective metallacyclization dependent on competing factors of ligand identity, PtCl 2 (PR 3 ) 2 isomer, and reaction conditions. Sn transmetalation conditions provided the most selective metallacyclization control and prevented PtCl 2 (PR 3 ) 2 isomerization during cyclization.

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Section: Resultssupporting

confidence: 88%

Selective Metallacyclization and Crystallographic Characterization of Structurally Related Platina-annulenes

Johnson¹,

Haley²,

Rather³

et al. 2005

Organometallics

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Palladium–Carbon σ-Bonded Complexes

Elsevier

Eberhard

2007

Comprehensive Organometallic Chemistry III

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Organophosphines in organoplatinum complexes: structural aspects of trans-PtP2C2 derivatives

Melnı́k

Mikuš

2017

Reviews in Inorganic Chemistry

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AbstractThis review summarized and analyzed the structural parameters of 174 monomeric organoplatinum complexes with an inner coordination sphere of trans-PtP2C2. These complexes crystallized in four crystal systems: hexagonal (x2), orthorhombic (x13), triclinic (x76), and monoclinic (x84). These complexes, on the basis of the coordination mode of the respective donor ligands, can be divided into the seven sub-groups: Pt(PL)2(CL)2, Pt(PL)2(η2-C2L), Pt(η2-P2L)(CL)2, Pt(PL)(η2-P,CL)(CL), Pt(η2-P,CL)2, Pt(η3-P,C,PL)(CL), and Pt(η3-C,P,CL)(PL). The chelating ligands create 4-, 5-, 6-, 16-, 17-, 18-, and 19-membered rings. The total mean values of Pt-L bond distances are 2.055 Å (C) and 2.300 Å (P). There are examples that exist in two isomeric forms and are examples of distortion isomerism. The structural parameters of trans-PtP2C2 are discussed with those of cis-PtP2C2 derivatives.

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Synthesis and crystallographic characterization of a ‘palladadehydrobenzo[19]annulene’

Cited by 3 publications

References 61 publications

Selective Metallacyclization and Crystallographic Characterization of Structurally Related Platina-annulenes

Selective Metallacyclization and Crystallographic Characterization of Structurally Related Platina-annulenes

Palladium–Carbon σ-Bonded Complexes

Organophosphines in organoplatinum complexes: structural aspects of trans-PtP2C2 derivatives

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