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Phosphine-aryldiethynyls (–C≡C(Ar)C≡C–)-gold(I)-gold(III) complexes: Synthesis and spectral study

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Title Phosphine-aryldiethynyls (–C≡C(Ar)C≡C–)-gold(I)-gold(III) complexes: Synthesis and spectral study
 
Creator Byabartta, Prithwiraj
 
Subject Gold(I)
Gold(III)
14B
NMR
ESI-MS
IR
 
Description 413-421
[Au2(dppm/dppe/dppa)(Cl)2], which on reaction with aryldiethynyls, -C≡C(Ar)C≡C-, and gold(I) phosphines in
MeOH, CH2Cl2 medium, by the self assembly technique leads to [(PPh3)Au(1,4-B)Au(PPh3/PPhoMe/
PPh2Me/PPhMe2/PCy3/PNEt2/PNMe2/AsPh3/DAPTA)], (1a-1j, 2), [{Au2(dppm/dppe/dppa)}{(1,4B)Au(PPh3/PPhoMe/
PPh2Me/PPhMe2/PCy3/PNEt2/PNMe2/AsPh3)}2], (3, 6, 7, 8, 9, 10, 11), [{Au4(dppm/dppe/dppa)2(1,4B)2}], 4,
[(AuPPh3)2AuIII(14B)(Mes/C6F5)2, 5a, 5b [dppm/dppe/dppa = diphenyl phosphino-methane(a), -ethane(b), ammine(c),
C6F5/Mes pentafluorophenyl/mesitylene, 14B = arylethynyl benzene, DAPTA=diacetyl 1,3,5-triaza-7-phosphaadamantane].
The maximum molecular peak of the corresponding molecule is observed in the ESI mass spectrum. IR spectra of the
complexes show -C=C- , -C=N-, as well as phosphine, mesitylene and pentafluorophenyl stretching. The 1H NMR spectra as
well as 31P (1H)NMR suggest solution stereochemistry, proton movement and phosphorus proton interaction. 13C (H)NMR
spectrum reflects the molecular skeleton. In the 1H-1H COSY spectrum of the present complexes assign the solution
structure. Complex 2 is water soluble and the spectra measured in D2O.
 
Date 2024-04-16T08:46:39Z
2024-04-16T08:46:39Z
2024-04
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/63771
https://doi.org/10.56042/ijc.v63i4.4657
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.63(04) [April 2024]