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Synthetic Approaches to and Structures of Diplatinum Polyynediyl Complexes trans,trans‐[(C6F5)(R3P)2Pt(C≡C)nPt(PR3)2(C6F5)] With Odd Numbers of Triple Bonds;Avoiding Complicating Ethynediyl Extrusions

https://doi.org/10.1002/ejic.202400428

DEY_BAKSI, SOURAJIT; Weisbach, Nancy; Bhuvanesh, Nattamai; Gladysz, John A (August 2024, European Journal of Inorganic Chemistry)

Reactions of trans‐(C6F5)(p‐tol3P)2Pt(C≡C)nSiEt3 (PtC2nSi; n = 5, 7, 9) and excess PtCl in the presence of wet n‐Bu4N+ F– under Sonogashira‐type conditions (CuCl, base, other additives) afford the title compounds PtC10Pt, PtC14Pt, and PtC18Pt in 42‐32% yields. A four‐fold substitution of the phosphine ligands in PtC10Pt by PEt3 affords Pt'C10Pt' (78%), and a Sonogashira reaction of Pt'C2H and Pt'Cl affords Pt'C2Pt' (68%). Certain sp chain extension reactions that lead to or employ the precursors PtC10Si, PtC12Si, PtC14Si, and PtC18Si sometimes give byproducts derived from C2 loss, and possible origins are discussed.
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Building Blocks for Molecular Polygons Based on Platinum Vertices and Polyynediyl Edges

https://doi.org/10.1021/acs.organomet.2c00573

Collins, Brenna K.; Weisbach, Nancy; Hampel, Frank; Bhuvanesh, Nattamai; Gladysz, John A. (February 2023, Organometallics)

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Trapping of Terminal Platinapolyynes by Copper(I) Catalyzed 3+2 "Click" Cycloadditions with Organoazides; Probes of Labile Intermediates in Syntheses of Complexes with Extended sp Carbon Chains, and Crystallographic Studies

Amini, Hashem; Weisbach, Nancy; Gauthier, Sebestian; Kuhn, Helene; Bhuvanesh, Nattamai; Hampel, Frank; Reibenspies, Joseph H; Gladysz, John A. (January 2021, Chemistry)

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Syntheses, Structures, and Spectroscopic Properties of 1,10‐Phenanthroline‐Based Macrocycles Threaded by PtC ₈ Pt, PtC ₁₂ Pt, and PtC ₁₆ Pt Axles: Metal‐Capped Rotaxanes as Insulated Molecular Wires

https://doi.org/10.1002/chem.201903927

Amini, Hashem; Baranová, Zuzana; Weisbach, Nancy; Gauthier, Sébastien; Bhuvanesh, Nattamai; Reibenspies, Joseph H.; Gladysz, John A. (October 2019, Chemistry – A European Journal)

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Triisopropylsilyl (TIPS) Alkynes as Building Blocks for Syntheses of Platinum Triisopropylsilylpolyynyl and Diplatinum Polyynediyl Complexes

https://doi.org/10.1021/acs.organomet.9b00368

Weisbach, Nancy; Kuhn, Helene; Amini, Hashem; Ehnbom, Andreas; Hampel, Frank; Reibenspies, Joseph H.; Hall, Michael B.; Gladysz, John A. (August 2019, Organometallics)
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Photophysics of Platinum Tetrayne Oligomers: Delocalization of Triplet Exciton

https://doi.org/10.1021/jp5021388

Li, Yongjun; Winkel, Russell W.; Weisbach, Nancy; Gladysz, John A.; Schanze, Kirk S. (October 2014, The Journal of Physical Chemistry A)

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A new type of insulated molecular wire: a rotaxane derived from a metal-capped conjugated tetrayne

https://doi.org/10.1039/C2CC33321J

Weisbach, Nancy; Baranová, Zuzana; Gauthier, Sébastien; Reibenspies, Joseph H.; Gladysz, John A. (January 2012, Chemical Communications)

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“Click” Chemistry in Metal Coordination Spheres: Copper(I)-Catalyzed 3+2 Cycloadditions of Benzyl Azide and Platinum Polyynyl Complexes trans -(C ₆ F ₅ )( p -tol ₃ P) ₂ Pt(C≡C) _n H ( n = 2−6)

https://doi.org/10.1021/om900680q

Gauthier, Sébastien; Weisbach, Nancy; Bhuvanesh, Nattamai; Gladysz, John A. (October 2009, Organometallics)

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Towards multistranded molecular wires: Syntheses, structures, and reactivities of tetraplatinum bis(polyynediyl) complexes with Pt-Cx-Pt-(P(CH2)3P)2-Pt-Cx-Pt-(P(CH2)3P)2 cores (x = 4, 6, 8)

https://doi.org/10.1039/c002041a

Owen, Gareth R.; Gauthier, Sébastien; Weisbach, Nancy; Hampel, Frank; Bhuvanesh, Nattamai; Gladysz, John A. (January 2010, Dalton Transactions)

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