Synthesis and Structure Determination of the Linear Conjugated Polyynyl and Polyynediyl Iron Complexes Fp*−(C⋮C)_n−X (X = H (n= 1, 2); X = Fp* (n= 1, 2, 4); Fp* = (η⁵-C₅Me₅)Fe(CO)₂)¹

Abstract

A series of polyynyl and polyynediyl complexes of iron, Fp*−(C⋮C) n −H [n = 2 (3)) and Fp*−(C⋮C) n −Fp* (n = 2 (4), 4 (5); Fp* = (η5-C5Me5)Fe(CO)2), have been prepared, and their linear structure has been confirmed by X-ray crystallography.

Luminescent Platinum(II) Terpyridyl‐Capped Carbon‐Rich Molecular Rods—An Extension from Molecular‐ to Nanometer‐Scale Dimensions

“…There has been a growing interest in the chemistry of carbon‐rich metal‐containing systems, in particular those of metal‐containing polyynes. Examples include the transition‐metal end‐capped [M]‐(CC) n ‐[M] systems ([M]=Re(Cp*)(NO)(PPh 3 ),1 trans ‐[Pt(C 6 F 5 )(PR 3 ) 2 ],2 Fe(Cp*)(dppe),3 Fe(Cp*)(CO) 2 ,4 Ru(Cp)(PPh 3 ) 2 ,5 Mn(dppe) 2 I,6 Re( t Bu 2 bpy)(CO) 3 ,7 Au(PCy 3 )8). Some of them have recently been shown to display interesting luminescence behavior 7.…”

The luminescent and scintillation properties of YAlO3 and YAlO3:Ce single crystalline films grown by liquid phase epitaxy from BaO‐based flux

“…The length of the conjugating bridge has also been the focus of investigations regarding the complex [Fp*‐(CC) n ‐Fp*] ( n =1–4, 6; Fp*=(η 5 ‐C 5 Me 5 )Fe(CO) 2 ) 179. 180 The oligomeric complexes were prepared by conventional Cu‐catalyzed oxidative coupling, with the longest example, the dodecahexynediyl derivative ( n =6), formed by oxidative dimerization of the hexatriynyl complex in the presence of a catalytic amount of CuCl⋅TMED.…”

Organometallic manganese complexes as scaffolds for potential molecular wires

“…17 We considered utilizing such coupling processes using [Mn(dmpe) ). These mixed-valent complexes [6] + and [7] + were isolated as violet solids and the structure of [7] + has been unequivocally established by a single-crystal X-ray diffraction study. 21,27 The intermediate species [Mn(dmpe) 2 (C≡CH)(C≡C|)] and [Mn(dmpe) 2 (C≡CSiMe 3 )(C≡C|)] has been proposed based on low-temperature 1 H NMR studies supported further by DFT calculations.…”

“…In particular, linear complexes with extended p systems interacting with metal complexes, such as L m Mn-(C≡C) n -MnL m , are potential candidates for the preparation of functional single-molecule devices. [3][4][5][6][7][8][9][10][11][12][13][14] The metal complexes were assumed to impart some functionality, for example, by acting as charge-trapping sites in single-electron transistors or electron hopping and photoactive sites. Research into the synthesis and electronic properties of metal alkynyl complexes and polymers continues to develop as a key area of organometallic chemistry.…”