Der strukturelle Feinbau von kondensierten aromatischen Kohlenwasserstoffen und ihren Molekülverbindungen mit Trinitrobenzol

Hertel, Eduard; Bergk, Hans Werner

doi:10.1515/zpch-1936-3329

Cited by 22 publications

(4 citation statements)

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“…When the electric vector of polarized light was made normal to the plane of the molecule, a new band was found at X = 5250 . This can only be interpreted on the assumption that there is a conjugation between the molecules, which are face to face in the crystal (32), and that the absorption is a result of this conjugation in the z direction.…”

Section: Orientation Of Electronic Oscillations Within the Moleculementioning

confidence: 99%

The Color of Organic Substances.

Lewis¹,

Calvin²

1939

Chem. Rev.

381

172

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Section: Orientation Of Electronic Oscillations Within the Moleculementioning

confidence: 99%

The Color of Organic Substances.

Lewis¹,

Calvin²

1939

Chem. Rev.

381

172

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“…Sir: When a cyclic or planar acceptor forms a charge-transfer complex with an aromatic donor, the structure is generally considered to have the planes of the molecules lying parallel to each other (<?). This sandwich-type structure has been proved by x-ray work in a number of cases such as chloranilhexamethylbenzene (,(), and trinitrobenzene-naphthalene (2)(3)(4).…”

Section: Literature Citedmentioning

confidence: 79%

Dissolution of Calcium Tungstate with an Acid-Hydrogen Peroxide Mixture.

Curry¹,

Carter²

1964

Anal. Chem.

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Figure 1. Variation of NI4 coupling constant with various metal ionsto the reversible addition of one electron to form the anion radical, is only vary slightly shifted toward more anodic potentials. However, the second peak is shifted markedly to more anodic potentials by, say, lithium ion. These results are completely analogous to those recently given by Peover and Davies (3) for the reduction of quinones in DMF and by Holleck and Becher for nitro compounds (2).These effects are important because, in reporting coupling constants of radical ions generated electrolytically, it will now be necessary to include the supporting electrolyte if this is other than a tetraalkyl salt. The almost complete lack of U N dependence on tetraethylammonium perchlorate concentration (Figure 1) shows that the original choice of tetraalkyl ammonium salts as supporting electrolytes in electrolytic generation of radical anions by Geske and Maki was indeed a judicious one (1). Bowever, as a consequence of the metal ion effects on coupling constants, one is able to study metal ion-radical ion interactions via the EPR method which gives additional information on the physical picture of the interaction. these studies will be given soon.

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“…OH Stretching Vibration of Pyromellitic Dianhydride-Hydroxynaphthalene Complexes Sir: When a cyclic or planar acceptor forms a charge-transfer complex with an aromatic donor, the structure is generally considered to have the planes of the molecules lying parallel to each other (<?). This sandwich-type structure has been proved by x-ray work in a number of cases such as chloranilhexamethylbenzene (,(), and trinitrobenzene-naphthalene (2)(3)(4).…”

mentioning

confidence: 79%

OH Stretching Vibration of Pyromellitic Dianhydride-Hydroxynaphthalene Complexes.

Richtol¹

1964

Anal. Chem.

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difference in speed of dissolution was observed between HNO3 and HCIO4, HCIO1 solutions are more stable upon heating and with respect to time. This is in accord with the findings of Dams and Hoste (1). Their work also suggests that, if tungstein is to be determined by homogeneous precipitation, HNO3 should be used in the initial decomposition. If the solution is to be treated with EDTA and base, any of the acids is acceptable.The meechanism of the reaction suggests possible utility not only in this application but also for insoluble or difficultly soluble titanates, vanadates, chromates, etc., which also form soluble peroxy acids (S). The method can be applied to barium titanate without modification and is far superior to the overnight digestion with HC1 followed by Na2COs fusion of the insoluble residue, which has been used by other workers (4, 5).

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Der strukturelle Feinbau von kondensierten aromatischen Kohlenwasserstoffen und ihren Molekülverbindungen mit Trinitrobenzol

Cited by 22 publications

References 0 publications

The Color of Organic Substances.

The Color of Organic Substances.

Dissolution of Calcium Tungstate with an Acid-Hydrogen Peroxide Mixture.

OH Stretching Vibration of Pyromellitic Dianhydride-Hydroxynaphthalene Complexes.

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