Significantly Increased Stability of Donor–Acceptor Molecular Complexes under Heterogeneous Conditions: Synthesis, Characterization, and Photosensitizing Activity of a Nanostructured Porphyrin–Lewis Acid Adduct

2020 ◽  
Vol 12 (41) ◽  
pp. 46190-46204
Author(s):  
Aida G. Mojarrad ◽  
Saeed Zakavi
Keyword(s):  
Lewis Acid ◽  
Molecular Complexes ◽  
Donor Acceptor ◽  
Acid Adduct

A Lewis Acid Adduct of an Alanediyl:  An Aluminum(I)−Boron Donor−Acceptor Bond

2000 ◽  
Vol 122 (5) ◽  
pp. 950-951 ◽  
Author(s):  
John D. Gorden ◽  
Andreas Voigt ◽  
Charles L. B. Macdonald ◽  
Joel S. Silverman ◽  
Alan H. Cowley
Keyword(s):  
Lewis Acid ◽  
Donor Acceptor ◽  
Acid Adduct

scholarly journals Donor–acceptor-stabilised germanium analogues of acid chloride, ester, and acyl pyrrole compounds: synthesis and reactivity

2019 ◽  
Vol 10 (16) ◽  
pp. 4402-4411 ◽  
Author(s):  
Mahendra Kumar Sharma ◽  
Soumen Sinhababu ◽  
Pritam Mahawar ◽  
Goutam Mukherjee ◽  
Bhawana Pandey ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Acid Chloride ◽  
Donor Acceptor

Hitherto unknown germaacid chloride (1), germaester (2), and Ngermaacyl pyrrole (3) compounds are stabilised as Lewis acid complexes. Reactivity studies on them yielded compounds such as germaynone (4) and germaacyl thioester (10).

scholarly journals Lewis‐Acid‐Catalyzed (3+2)‐Cycloadditions of Donor‐Acceptor Cyclopropanes with Thioketenes

2021 ◽  
Author(s):  
Grzegorz Mlostoń ◽  
Mateusz Kowalczyk ◽  
André U. Augustin ◽  
Peter G. Jones ◽  
Daniel B. Werz
Keyword(s):  
Lewis Acid ◽  
Donor Acceptor ◽  
Acid Catalyzed

Donor-acceptor complexes formed by perfluoro-organo bromides and iodides with nitrogenous and other bases. II. Band shapes and widths in the absorption spectrum of gaseous CF3I-N(CH3)3

1971 ◽  
Vol 24 (12) ◽  
pp. 2493 ◽  
Author(s):  
A Mishra ◽  
ADE Pullin
Keyword(s):  
Vibrational Mode ◽  
Low Frequency ◽  
Molecular Complexes ◽  
Wave Number ◽  
Centrifugal Distortion ◽  
Band Shape ◽  
Gaseous Mixtures ◽  
Factors Affecting ◽  
Donor Acceptor ◽  
Vibration Rotation

The absorption band centred at c. 77 cm-1 in gaseous mixtures of CF3I and N(CH3)3 previously reported and attributed to the N-I stretching mode of the complex CF3I-N(CH3)3 has been carefully re-examined. This band is of interest as an example of a low frequency ?dissociative type? vibrational mode of a weak molecular complex. The band is asymmetric and apparently structureless with a half intensity width at room temperature of 28-30 cm-1. The width of the band may be accounted for as arising from transitions vi + vi+1 where vi is the vibrational quantum number of the N-I stretching mode with vi up to c. 10 making appreciable contribution to the intensity on the low wave-number side. Centrifugal distortion in the complex is considered. Centrifugal stretching and consequent weakening of the bond may shift the band envelope 2-3 cm-1 to lower wave numbers. Assessment of these and other factors affecting the band shape suggest that the fundamental frequency is probably c. 90 cm-1. The band shape of the vibrational mode of the complex at c. 272 cm-1 is briefly discussed. Many of the considerations presented in this paper should apply to vibration-rotation band shapes in other weak molecular complexes. Some general consequences of anharmonicity for the interpretation of the spectra of weak molecular complexes are discussed.

Scope and Mechanism for Lewis Acid-Catalyzed Cycloadditions of Aldehydes and Donor−Acceptor Cyclopropanes: Evidence for a Stereospecific Intimate Ion Pair Pathway

2008 ◽  
Vol 130 (27) ◽  
pp. 8642-8650 ◽  
Author(s):  
Patrick D. Pohlhaus ◽  
Shanina D. Sanders ◽  
Andrew T. Parsons ◽  
Wei Li ◽  
Jeffrey S. Johnson
Keyword(s):  
Lewis Acid ◽  
Ion Pair ◽  
Donor Acceptor ◽  
Acid Catalyzed

Synthese und Eigenschaften von Dimethylsulfan-Halogenboranen, (CH3)2SBHnX3-n / Synthesis and Properties of Dimethylsulfane-haloboranes, (CH3)2SBHnX3-n

1975 ◽  
Vol 30 (1-2) ◽  
pp. 55-59 ◽  
Author(s):  
Klemens Kinberger ◽  
Walter Siebert
Keyword(s):  
Lewis Acid ◽  
Boron Compounds ◽  
H Nmr ◽  
Donor Acceptor ◽  
Bond Strengths

Dimethylsulfane-borane, (CH3)2SBH3, reacts with X2, HX and BX3 to give (CH3)2SBH2X and (CH3)2SBHX2 (X = Br, I). Although BI3 is the strongest Lewis-acid amongst the boron compounds, it does not form (CH3)2SBI3 but (CH3)2SBHI2 and B2H6, when it is mixed with (CH3)2SBH3. 1H—NMR results indicate an increase in the donor-acceptor bond strengths with decreasing n in the series (CH3)2SBHnX3-n.

Efficient Synthesis of Diarylmethylamines via Lewis Acid Catalyzed Friedel–Crafts Reactions of Donor–Acceptor Aziridines with N,N-Dialkylanilines

Synthesis ◽  
2019 ◽  
Vol 52 (02) ◽  
pp. 281-289
Author(s):  
Yerin Kim ◽  
Yong Il Kwon ◽  
Sung-Gon Kim
Keyword(s):  
Lewis Acid ◽  
Efficient Synthesis ◽  
Broad Scope ◽  
Donor Acceptor ◽  
Acid Catalyzed ◽  
High Yields

A method for efficient and mild synthesis of diarylmethylamine scaffold, via Lewis acid catalyzed Friedel–Crafts reaction of donor­–acceptor aziridines with N,N-dialkylanilines to afford a biologically important diarylmethylamine derivatives in high yields (up to 88%), is presented. This reaction is suitable for the synthesis of various diarylmethylamine derivatives and has a broad scope for electron-rich arenes, including dimethoxybenzene.

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