Electron-donor ability of the unsaturated dimanganese hydrides [Mn2(.mu.-X)(.mu.-H)(CO)6(.mu.-dppm)] (X = H, AuPPh3; dppm = Ph2PCH2PPh2). X-ray crystal structures of [Mn2[.mu.-Ag(ClO4)PPh3](.mu.-H)2(CO)6(.mu.-dppm)] and [Mn2(.mu.-AuPPh3)2(.mu.-H)(CO)6(.mu.-dppm)][PF6].cntdot.C7H8

Eight ester and ether derivatives of propargyl alcohol with varying electron demand were structurally characterised using low temperature X-ray crystallography, these were combined with seven derivatives obtained from the Cambridge Structural Database. Variable oxygen probe analysis of these derivatives provided evidence that the ethynyl substituent is a relatively weak π-electron donor, and is a slightly less effective donor than the C–C bond of an ethyl substituent.

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Imidazolin-2-iminato-Derivate der Thiokohlensäure [1] / Imidazolin-2-iminato Derivatives of Thiourea [1]

Zeitschrift für Naturforschung B ◽

10.1515/znb-1997-0907 ◽

1997 ◽

Vol 52 (9) ◽

pp. 1055-1061 ◽

Cited By ~ 2

Author(s):

Norbert Kuhn ◽

Riad Fawzi ◽

Cacilia Maichle-Mößmer ◽

Manfred Steimann ◽

Jörg Wiethoff

Keyword(s):

Electron Donor ◽

Polar Solvents ◽

X Ray ◽

Donor Ability ◽

Polymeric Solid ◽

Derivatives Of ◽

Electron Donor Ability

From 2-trimethylsilylimino-1,3-dimethylimidazoline (6, ImN-SiMe3) and CSCl2 the imidochlorothionic acid [ImN=C(S)Cl (7) is obtained; 7 gives with AlCl3 the cationic isothiocyanate [ImN=C=S]AlCl4 (9). The corresponding imidothiourea ImN=C(S)NEt2 (12) is formed reacting Et2NC(S)Cl (10) and ImNLi (11). The reaction of ImN=C(S)SSiMe3 (13) with iodine gives the dicationic species [{ImN=C(SSiMe3)S}2](I3)2 (14) which is transformed into the protonated imidothiourea [ImN=C(S)N(H)Im]I (16) by polar solvents. From 16 the imidothiourea (ImN)2CS (8) is obtained as a polymeric solid. The strong π-electron donor ability of the imido substituent ImN is revealed by the X-ray structure analyses of 12 and 16.

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Synthesis, Structure, and Reactivities of Iminosulfane- and Phosphane-Stabilized Carbones Exhibiting Four-Electron Donor Ability

Chemistry - A European Journal ◽

10.1002/chem.201502166 ◽

2015 ◽

Vol 21 (43) ◽

pp. 15405-15411 ◽

Cited By ~ 15

Author(s):

Tomohito Morosaki ◽

Wei-Wei Wang ◽

Shigeru Nagase ◽

Takayoshi Fujii

Keyword(s):

Electron Donor ◽

Donor Ability ◽

Electron Donor Ability

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Electronic energy levels and electron donor ability of Î³-pyrylocyanines and their heteroanalogues

Dyes and Pigments ◽

10.1016/0143-7208(84)80023-6 ◽

1984 ◽

Vol 5 (4) ◽

pp. 295-306 ◽

Cited By ~ 20

Author(s):

A Kachkovski

Keyword(s):

Electron Donor ◽

Energy Levels ◽

Electronic Energy ◽

Donor Ability ◽

Electronic Energy Levels ◽

Electron Donor Ability

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Relationship between structure of cation and electron-donor ability in substituted alkylammonium iodides

Journal of Structural Chemistry ◽

10.1007/bf00739475 ◽

1973 ◽

Vol 14 (2) ◽

pp. 330-331

Author(s):

Yu. G. Frolov ◽

V. V. Sergievskii

Keyword(s):

Electron Donor ◽

Donor Ability ◽

Electron Donor Ability

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Electron donor ability of the annelated end-groups of polymethine dyes

Dyes and Pigments ◽

10.1016/0143-7208(90)85014-f ◽

1990 ◽

Vol 12 (3) ◽

pp. 219-231 ◽

Cited By ~ 5

Author(s):

G.G. Dyadyusha ◽

A.D. Kachkovski ◽

M.L. Dekhtyar

Keyword(s):

Electron Donor ◽

Polymethine Dyes ◽

End Groups ◽

Donor Ability ◽

Electron Donor Ability

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Relationship of the selectivity effect of aromatic solvents with their electron-donor ability and organic reactant structure in free radical chlorination

Kinetics and Catalysis ◽

10.1007/bf02771414 ◽

2000 ◽

Vol 41 (2) ◽

pp. 152-158 ◽

Cited By ~ 2

Author(s):

V. A. Aver’yanov ◽

D. V. Vlasov ◽

A. A. Svechnikova ◽

A. I. Ermakov

Keyword(s):

Free Radical ◽

Electron Donor ◽

Aromatic Solvents ◽

Radical Chlorination ◽

Donor Ability ◽

Relationship Of ◽

Electron Donor Ability

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DDQ-promoted thiocyanation of aromatic and heteroaromatic compounds

Canadian Journal of Chemistry ◽

10.1139/v07-092 ◽

2007 ◽

Vol 85 (11) ◽

pp. 930-937 ◽

Cited By ~ 23

Author(s):

Hamid R Memarian ◽

Iraj Mohammadpoor-Baltork ◽

Kobra Nikoofar

Keyword(s):

Electron Donor ◽

Room Temperature ◽

Ammonium Thiocyanate ◽

Methanol Solution ◽

Heteroaromatic Compounds ◽

Rate Of Reaction ◽

Donor Ability ◽

Electron Donor Ability

Thiocyanation of various aromatic and heteroaromatic compounds has been achieved using ammonium thiocyanate in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) in methanol solution at room temperature and under reflux condition. The rate of reaction is influenced by the electron-donor ability of the aromatic nucleus.Key words: amines, DDQ, indoles, thiocyanation.

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