Heterocyclic Spiro-naphthalenones. Part V. Synthesis of Some 2-Benzazepines from 3,4-Dihydrospiro [furan-2-(5H), 1′(2′H)-naphthalene]-2,5-dione

Compound 2 was rearranged on treatment with 2N NaOH to the 2-benzazepine-3-propanoic

1 See footnote (5) of the preceding paper.

acid 3 . Some aspects of the chemistry of this acid were studied.     

The Synthesis of Some 7, 8-Dimethoxy-5-phenyl-2H-3-benzazepin-2-one Derivatives

The benzazepin-2-ones 7 and 9 were prepared from homoveratroyl chloride (4) and phenacylamine. Compounds 7 and 9 were used for the preparation of the benzazepin-2-amines 3, 11, 13 and 14. A synthesis of the benzazepine-1,2-dione 17 and the benzazepine-2,4-dione 20 is also described.     

Darstellung und strukturen diorganylsubstituierter Silicium-Germanium-Sauerstoff-achtringe

Diphenylgermanium diphenylsilicon oxide and dimethylgermanium diphenylsilicon oxide [(R₂Ge)O(Ph₂Si)O]₂ (R = Ph, Me) have been synthesized by treatment of diorganogermanium dihalides with diphenyldihydroxysilane. The X-ray analysis showed nonplanar eight-membered silicon-germanium-oxygen rings which are more puckered than those of cyclotetrasiloxanes. In the compound with R = phenyl the silicon and germanium atoms are disordered.     

Phosphorescence and energy assignment of acetaldehyde-d4(3A″) in the vapor phase

The phosphorescence spectrum of CD₃CDO(³A″) has been obtained by collisional sensitization with triplet state sensitizers. The energy of CD₃CDO(³A″) has been assigned at 27 400 ± 200 cm^?1.     

The large numbers hypothesis and quantum mechanics

In this paper, the suggested similarity between micro and macrocosmos is extended to quantum behavior, postulating that quantum mechanics, like general relativity and classical electrodynamics, is invariant under discrete scale transformations. This hypothesis leads to a large scale quantization of angular momenta. Using the scale factor Λ ~ 10³⁸, the corresponding quantum of action, obtained by scaling the Planck constant, is close to the Kerr limit for the spin of the universe - when this is considered as a huge rotating black hole - and to the spin of Gödel’s universe, solution of Einstein equations of gravitation. Besides, we suggest the existence of another, intermediate, scale invariance, with scale factor λ ~ 10¹⁹. With this factor we obtain, from Fermi’s scale, the values for the gravitational radius and for the collapse proper time of a typical black hole, besides the Kerr limit value for its spin. It is shown that the mass-spin relations implied by the two referred scale transformations are in accordance with Muradian’s Regge-like relations for galaxy clusters and stars. Impressive results are derived when we use a λ-scaled quantum approach to calculate the mean radii of planetary orbits in solar system. Finally, a possible explanation for the observed quantization of galactic redshifts is suggested, based on the large scale quantization conjecture.     

High-spin states in99Tc

The level scheme of⁹⁹Tc was studied byγ-ray spectroscopy with the⁹⁶Zr(⁶Li, 3n γ)⁹⁹Tc reaction. New levels were established and spins and parities assigned.⁹⁹Tc is compared with^{93, 95, 97}Tc, with the neighbouring even-even Mo-isotopes and with the results of an IBFM calculation.     

The structure of the 1,4-butanediol clathrate of a bis-ammonium salt of azulene

The X-ray structure of the 1,4-butanediol clathrate ofN,N-[1,3-azulenylenebis(methylene)]bis(trimethyl-ammonium)-diiodide is described, and the differences as well as the similarities to the 1-butanol inclusion of the same host are discussed in detail. The unit cell data of further clathrates of this new type are quoted.Supplementary Data. Details of the crystal structure are available on request from the Fachinformationszentrum Energie-Physik-Mathematik, D-7515 Eggenstein, Leopoldshafen 2, by quoting the depository number CSD50482, the names of the authors, and the journal citation     

High-spin states in112Cd from the110Pd(α, 2n γ)-reaction

The decay scheme of¹¹²Cd has been studied by γ-ray spectroscopy with the¹¹⁰Pd(α, 2nγ) reaction. Spin and parity assignments were made on the basis of coincidence measurements, angular distributions and excitation functions. Twelve new energy levels were established. A vibrational-like positive-parity band up to spin 8⁺ and a negativeparity side band 5^?, (7^?), (9^?) were found. For the negative-parity states a (v_j, vh_11/2) configuration is suggested. Nuclear Reactions:¹¹⁰Pd(α,2nγ),E _α =15–22.5 MeV; measuredE _γ ,E _γ , (E,E _γ ),E _γ (θ),γ-γ- coincidence;¹¹²Cd deduced levels,J; enriched target.     

High spin states in95Tc populated in the93Nb(α, 2nγ) reaction

The⁹³Nb(α, 2nγ)⁹⁵Tc reaction has been studied at a bombarding energy of 22.5 MeV using Ge(Li)-detectors. Gamma singles spectra, gamma-gamma coincidences, excitation functions and gamma angular distribution have been obtained. A level scheme has been constructed. Spin and parity assignments up to 29/2⁺ are given.