para-Ethynyl aniline as a building block for fully π-conjugated ligands and acetylide complexes: crystal structures of trans-[Pt(PPh3)2(CCC6H4NH2)2] and [(μ-H)Ru3(CO)9(μ3-CCC6H4NH2)]

Deeming, Antony J.; Hogarth, Graeme; Lee, Mo-yin; Saha, Malini; Redmond, Simon P; Phetmung, Hirihattaya; Orpen, A. Guy

doi:10.1016/s0020-1693(00)00254-1

Cited by 46 publications

(20 citation statements)

References 40 publications

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“…A similar arrangement is observed in the structure of trans-4 as described above with trans-3 with the tilting of the arylalkynyl groups with respect to the PTA ligands at the metal center with the C1AC2AC3 angle also being equal to 173°). The PtAP, PtAC, and C"C bond distances of trans-4 are comparable to those reported for the related complexes [5b, 16,21]. The chloroform solvate molecule was omitted from Fig.…”

Section: Resultssupporting

confidence: 73%

“…The PtAP, PtAC, and C"C bond distances of trans-[Pt{C"C(C 6 H 5 )} 2 (PTA) 2 ] were similar to trans-3 (PtAP = 2.26, PtAC = 1.96-2.04, C"C = 1.14 Å). The PtAP, PtAC, and C"C bond distances of trans-3 are also similar to those reported for the related complexes, trans-[Pt{C"C(CH 2 ) 3 NH 3 } 2 (PTA) 2 ] (PtAP = 2.26, PtAC = 2.03, and C"C = 1.19 Å) (same reference as above for comparison of coupling values [5b,16] and trans-[Pt{C"C(C 6 H 4 -4-NH 2 ) 3 } 2 (PPh 3 ) 2 ] (PtAP = 2.31, PtAC = 2.00, and C"C = 1.20 Å)) [21]). …”

Section: Resultsmentioning

confidence: 99%

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Bis(alkynyl) PTA and DAPTA complexes of Pt(II) and Pd(II)

2015

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Section: Resultssupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Bis(alkynyl) PTA and DAPTA complexes of Pt(II) and Pd(II)

2015

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“…Two molecules were specifically synthesized for the present work. 4.4' diamino stilbene was prepared by a known method involving the reduction of the dinitro stilbene [41] while bis-(4-aminophenyl)acetylene was prepared by a previously reported method [42].…”

Section: Experimental Methodsmentioning

confidence: 99%

Amine-linked single-molecule circuits: systematic trends across molecular families

Hybertsen¹,

Venkataraman²,

Klare³

et al. 2008

J. Phys.: Condens. Matter

152

198

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Abstract.A comprehensive review is presented of single molecule junction conductance measurements across families of molecules measured while breaking a gold point contact in a solution of molecules with amine end groups. A theoretical framework unifies the picture for the amine-gold link bonding and the tunnel coupling through the junction using Density Functional Theory based calculations. The reproducible electrical characteristics and utility for many molecules is shown to result from the selective binding between the gold electrodes and amine link groups through a donor-acceptor bond to undercoordinated gold atoms. While the bond energy is modest, the maximum force sustained by the junction is comparable to, but less than, that required to break gold point contacts. The calculated tunnel coupling provides conductance trends for all 41 molecule measurements presented here, as well as insight into the variability of conductance due to the conformational changes within molecules with torsional degrees of freedom. The calculated trends agree to within a factor of two of the measured values for conductance ranging from 10 -7 G 0 to 10 -2 G 0 , where G 0 is the quantum of conductance (2e 2 /h).

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“…The hydrogen atom in a terminal alkyne group is relatively acidic due to the sp hybridization and forms stronger C-HÁÁÁX hydrogen bonds than most hydrocarbon donors, with either an electronegative atom (e.g., O or N) or the p electron concentration of another C"C bond acting as the acceptor [4]. The crystal structure of terminal alkynes is becoming the focus of an increasing number of studies, with particular reference to their applicability in crystal engineering [5][6][7][8]. Modern crystal engineering has emerged as a wealthy discipline whose success requires an iterative process of synthesis, crystallography and crystal structure analysis.…”

Section: Introductionmentioning

confidence: 99%