Synthesis of Neutral Molecular Squares Composed of Bis(phosphine)platinum Corner Units and Dialkynyl Linkers. Solid-State Characterization of [Pt(μ-C⋮CC⋮C)(dppp)]4

Mesfin Janka; Gordon K. Anderson; Nigam Rath

doi:10.1021/om049690w

Synthesis of Neutral Molecular Squares Composed of Bis(phosphine)platinum Corner Units and Dialkynyl Linkers. Solid-State Characterization of [Pt(μ-C⋮CC⋮C)(dppp)]4

Mesfin Janka, Gordon K. Anderson, Nigam Rath

University of Missouri-St. Louis

Research output: Contribution to journal › Article › peer-review

Abstract

<div class="line" id="line-11"> Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et 2 NH, leads to complexes of the types [Pt(C&vellip;CH) 2 L 2 ] (L 2  = dppe (1), dppp (2); L = PEt 3  (3)) and [Pt(C&vellip;CC&vellip;CH) 2 L 2 ] (L 2  = dppp (4), dcpe (5); L = PEt 3  (6)). Attempts to produce tetraplatinum species with ethynyl edges proved unsuccessful, but further coupling of the butadiynylplatinum complexes with [PtCl 2 L 2 ] produces the neutral molecular squares [Pt(μ-C&vellip;CC&vellip;C) 2 L 2 ] 4  (L 2  = dppp (7), dcpe (8); L = PEt 3  (9)). This two-step approach allows the synthesis of the unsymmetrical complexes [Pt 2 (μ-C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 L 2 ] (L 2  = dppp (10); dcpe (11)). The molecular structure of 7 reveals that each square has a puckered, butterfly-like structure. These pack in a face-to-face manner, generating series of channels that accommodate several solvent molecules. Coupling of  trans -[Pt(C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 ] (6b) with [PtCl 2 L 2 ] (L 2  = dcpe, dppp) leads to complexes assigned as neutral octaplatinum derivatives. The nitrogen-containing complexes [Pt(C&vellip;CC 5 H 4 N) 2 (dppp)] (14) and [Pt(C&vellip;CC 6 H 4 CN) 2 (dppp)] (15) react with AgNO 3  to produce Pt 4 Ag 4  adducts. </div>

Original language	American English
Journal	Organometallics
Volume	23
DOIs	https://doi.org/10.1021/om049690w
State	Published - Aug 18 2004

Keywords

Cations
Ligands
Molecular structure
Molecules
Platinum

Disciplines

Life Sciences
Biochemistry, Biophysics, and Structural Biology
Biochemistry

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@article{0437219edf7a4f118a3f80984d0e4531,

title = "Synthesis of Neutral Molecular Squares Composed of Bis(phosphine)platinum Corner Units and Dialkynyl Linkers. Solid-State Characterization of [Pt(μ-C⋮CC⋮C)(dppp)]4",

abstract = " Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et 2 NH, leads to complexes of the types [Pt(C&vellip;CH) 2 L 2 ] (L 2  = dppe (1), dppp (2); L = PEt 3  (3)) and [Pt(C&vellip;CC&vellip;CH) 2 L 2 ] (L 2  = dppp (4), dcpe (5); L = PEt 3  (6)). Attempts to produce tetraplatinum species with ethynyl edges proved unsuccessful, but further coupling of the butadiynylplatinum complexes with [PtCl 2 L 2 ] produces the neutral molecular squares [Pt(μ-C&vellip;CC&vellip;C) 2 L 2 ] 4  (L 2  = dppp (7), dcpe (8); L = PEt 3  (9)). This two-step approach allows the synthesis of the unsymmetrical complexes [Pt 2 (μ-C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 L 2 ] (L 2  = dppp (10); dcpe (11)). The molecular structure of 7 reveals that each square has a puckered, butterfly-like structure. These pack in a face-to-face manner, generating series of channels that accommodate several solvent molecules. Coupling of  trans -[Pt(C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 ] (6b) with [PtCl 2 L 2 ] (L 2  = dcpe, dppp) leads to complexes assigned as neutral octaplatinum derivatives. The nitrogen-containing complexes [Pt(C&vellip;CC 5 H 4 N) 2 (dppp)] (14) and [Pt(C&vellip;CC 6 H 4 CN) 2 (dppp)] (15) react with AgNO 3  to produce Pt 4 Ag 4  adducts. ",

keywords = "Cations, Ligands, Molecular structure, Molecules, Platinum",

author = "Mesfin Janka and Anderson, {Gordon K.} and Nigam Rath",

note = "Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et2NH, leads to complexes of the types [Pt(C⋮CH)2L2] (L2 = dppe (1), dppp (2); L = PEt3 (3)) and [Pt(C⋮CC⋮CH)2L2] (L2 = dppp (4), dcpe (5); L = PEt3 (6)).",

year = "2004",

month = aug,

day = "18",

doi = "10.1021/om049690w",

language = "American English",

volume = "23",

journal = "Organometallics",

}

TY - JOUR

T1 - Synthesis of Neutral Molecular Squares Composed of Bis(phosphine)platinum Corner Units and Dialkynyl Linkers. Solid-State Characterization of [Pt(μ-C⋮CC⋮C)(dppp)]4

AU - Janka, Mesfin

AU - Anderson, Gordon K.

AU - Rath, Nigam

N1 - Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et2NH, leads to complexes of the types [Pt(C⋮CH)2L2] (L2 = dppe (1), dppp (2); L = PEt3 (3)) and [Pt(C⋮CC⋮CH)2L2] (L2 = dppp (4), dcpe (5); L = PEt3 (6)).

PY - 2004/8/18

Y1 - 2004/8/18

N2 - Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et 2 NH, leads to complexes of the types [Pt(C&vellip;CH) 2 L 2 ] (L 2  = dppe (1), dppp (2); L = PEt 3  (3)) and [Pt(C&vellip;CC&vellip;CH) 2 L 2 ] (L 2  = dppp (4), dcpe (5); L = PEt 3  (6)). Attempts to produce tetraplatinum species with ethynyl edges proved unsuccessful, but further coupling of the butadiynylplatinum complexes with [PtCl 2 L 2 ] produces the neutral molecular squares [Pt(μ-C&vellip;CC&vellip;C) 2 L 2 ] 4  (L 2  = dppp (7), dcpe (8); L = PEt 3  (9)). This two-step approach allows the synthesis of the unsymmetrical complexes [Pt 2 (μ-C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 L 2 ] (L 2  = dppp (10); dcpe (11)). The molecular structure of 7 reveals that each square has a puckered, butterfly-like structure. These pack in a face-to-face manner, generating series of channels that accommodate several solvent molecules. Coupling of  trans -[Pt(C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 ] (6b) with [PtCl 2 L 2 ] (L 2  = dcpe, dppp) leads to complexes assigned as neutral octaplatinum derivatives. The nitrogen-containing complexes [Pt(C&vellip;CC 5 H 4 N) 2 (dppp)] (14) and [Pt(C&vellip;CC 6 H 4 CN) 2 (dppp)] (15) react with AgNO 3  to produce Pt 4 Ag 4  adducts.

AB - Coupling of dichloroplatinum complexes with ethyne or butadiyne, catalyzed by CuI in the presence of Et 2 NH, leads to complexes of the types [Pt(C&vellip;CH) 2 L 2 ] (L 2  = dppe (1), dppp (2); L = PEt 3  (3)) and [Pt(C&vellip;CC&vellip;CH) 2 L 2 ] (L 2  = dppp (4), dcpe (5); L = PEt 3  (6)). Attempts to produce tetraplatinum species with ethynyl edges proved unsuccessful, but further coupling of the butadiynylplatinum complexes with [PtCl 2 L 2 ] produces the neutral molecular squares [Pt(μ-C&vellip;CC&vellip;C) 2 L 2 ] 4  (L 2  = dppp (7), dcpe (8); L = PEt 3  (9)). This two-step approach allows the synthesis of the unsymmetrical complexes [Pt 2 (μ-C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 L 2 ] (L 2  = dppp (10); dcpe (11)). The molecular structure of 7 reveals that each square has a puckered, butterfly-like structure. These pack in a face-to-face manner, generating series of channels that accommodate several solvent molecules. Coupling of  trans -[Pt(C&vellip;CC&vellip;C) 2 (PEt 3 ) 2 ] (6b) with [PtCl 2 L 2 ] (L 2  = dcpe, dppp) leads to complexes assigned as neutral octaplatinum derivatives. The nitrogen-containing complexes [Pt(C&vellip;CC 5 H 4 N) 2 (dppp)] (14) and [Pt(C&vellip;CC 6 H 4 CN) 2 (dppp)] (15) react with AgNO 3  to produce Pt 4 Ag 4  adducts.

KW - Cations

KW - Ligands

KW - Molecular structure

KW - Molecules

KW - Platinum

UR - https://doi.org/10.1021/om049690w

U2 - 10.1021/om049690w

DO - 10.1021/om049690w

M3 - Article

VL - 23

JO - Organometallics

JF - Organometallics

ER -

Synthesis of Neutral Molecular Squares Composed of Bis(phosphine)platinum Corner Units and Dialkynyl Linkers. Solid-State Characterization of [Pt(μ-C⋮CC⋮C)(dppp)]4

Abstract

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