ORIGINAL_ARTICLE
ISOLATION AND CHARACTERIZATION OF SIX
HIGHLY INTRINSIC FLUORESCENT
METABOLITES IN ARMILLARIA MELLEA
(VAHL. EX. FR.) KARST
Six fluorescent compounds were isolated and characterized in rhizomorph of
A. mellea and were presented first as: F , F , F , MF , MF and MF . These
compounds differed by Rf on chromatoplaque, max in UV spectra and ex,
em and max in fluorescence spectra. Their GC-MS analysis indicated that F
has a phenolic moiety and the other five are the benzenic derivatives. F
compound was more fluorescent resulting from its hydroxyl group. The
difference between the fluorescent compounds of rhizomorph and hyphae
suggests the participation of some of these compounds in differentiation.
Moreover, these compounds may have antibiotic activity against their hosts or
enemies
https://jsciences.ut.ac.ir/article_31410_5a150d7626bb5c8aa494acf859e07663.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
TERATOGENIC EFFECTS OF LITHIUM
CARBONATE ON DEVELOPMENT OF MOUSE
EMBRYOS
https://jsciences.ut.ac.ir/article_31411_f1e10da363ba12f9250ac0605b7b7a27.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
LEWIS BASE ADDUCTS OF LEAD(I1)
COMPOUNDS 111*
SYNTHESIS AND STRUCTURAL
CHARACTERIZATION OF
LPb(C10,), AND LPb(NCS),,
(L= MESO-5,7,7,12,14, 14-HEXAMETHYL- 1,4,8,11-
TETRA-AZACY COTETRADECANE)
The reactions of Pb(C10 ) , and Pb(SCN) with meso-5,7,7,12,14,14-hexamethyl-
1,4,8,ll ,tetra-azacyclotetradecane (C ,H ,N = L) yielded colorless crystals of
LPb(CI O ) (1) and LPb(NCS) (2), respectively. Their structures were determined
by X-ray crystallography. Crystal data: 1 monoclinic, P 2 /c, a =11.293 (4) ?,
b = 16.382 (6) ? , c = 21.518(4) ?, ? = 92.14(2)?, Z = 4, MoKa, 1824 observed
(1>2.5?(I )) data (20°C), R = 0.044; 2 ,orthorombic, P cab, a = 15.861(2) ? ,
b = 10.436(8) ?, c = 20.347(4) ?, ? = 90.00(3)?, Z= 4, MoK?, 1763 observed
(1>2.5?(I) data (20°C), R= 0.05 1. In both molecules, lead(II) cation is situated above
the plane of the macrocyclic ring
https://jsciences.ut.ac.ir/article_31412_13ba9cd19c3fb0ff6f63c8c191c51c83.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
SYNTHESIS OF SELENAZOL0[3,2-b] [ 1,2,4]
TRIAZINE AND SELENAZOLO [2,3-C] [I ,2,4]
TRIAZINE
6-Methyl- 1,2,4-triazine-3-(2H)-selenone-5(4H)-one(l) reacts in the presence of
base with phenacyl bromide to give a mixture of compounds (2) and (3). This mixture is dehydrated in the presence of H,SO, to give 3-phenyl-6 methyl-7H-selenazolo[3,2-b] [I ,2,4] triazin-7-one (6). For careful structure assignment of (6) its regioisomer 3-methyl-6-phenyl-4H-selenazolo [2,3-c] [ 1,2,4] triazin-4-one (8) was unambiguously synthesized and its spectroscopic data were Compared with those of (6)
https://jsciences.ut.ac.ir/article_31413_2ec9f722cb5ff2f0dc7b0a7236b4a243.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
PREPARATION OF (CHLOROCARBONYL)
PHENYLKETENB AND ITS CYCLOADDITION
REACTION WITH BENZALDEHYDEV
Meldrum's acid, 2'5-diphenyl-1'3-dioxane-4'6-dione, was produced by [2+2]
cycloadditions of the (chlorocarbony1)phenylketene with benzaldehyde. Acid
hydrolysis of the meldrum's acid regenerated benzaldehyde and also yielded
phenylacetic acid as the final product
https://jsciences.ut.ac.ir/article_31414_c0de951591fa3a12212808c0a2a6e2e8.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
THE EXTENDED LAW OF CORRESPONDING -
STATES AND THE INTERMOLECULAR
POTENTIALS FOR Ar-Ar, Ar-Kr AND Kr-Kr
An inversion procedure is used to obtain from the extended principle of
corresponding - states the pair interaction potentials for argon, krypton and its
mixture over a tetnperature range from absolute zero to the onset of ionization.
The experimentally-reduced viscosity collision integrals obtained from the
corresponding - states correlation have been inverted directly to give the
reduced-intermolecular potential energy curves corresponding to the collision
integrals. These directly determined potentials are in good agreement with the
potentials independently obtained from the molecular-beam scattering
measurements, which were fitted by ESMSV for Ar-Ar and Kr-Kr and by
SMSV for Ar-Kr
https://jsciences.ut.ac.ir/article_31415_a4656f099a4c16afeb228ff287b8dc32.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
THE DERIVED GROUP OF A SEIFERT FIBRE
GROUP
Every Seifert Fibre Group is the lift of a Fuchsian group to the universal
covering group of PSL (2,R). From this, we work out a form of presentation for
such a group. With the calculation of the Euler number, we can establish the
presentation of the derived group of a Seifert Fibre Group
https://jsciences.ut.ac.ir/article_31416_b9222f2f366ef866121a9724e5bef3f2.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
THE ANALOGUE OF WEIGHTED GROUP
ALGEBRA FOR SEMITOPOLOGICAL
SEMIGROUPS
In [1,2,3], A. C. Baker and J.W. Baker studied the subspace Ma(S) of the
convolution measure algebra M, (S) of a locally compact semigroup. H.
Dzinotyiweyi in [5,7] considers an analogous measure space on a large class
of C-distinguished topological semigroups containing all completely regular
topological semigroups. In this paper, we extend the definitions to study the
weighted semigroup algebra Ma (S, o), where o is a weight function on a Cdistinguished
semitopological semigroup S. We will show that this subspace
is a convolution measure algebra. As acorollary, this answers in the affirmative
a question raised by J.W. Baker and H. Dzinotyiweyi in [6]
https://jsciences.ut.ac.ir/article_31417_d223c10a8893ae2bd7a1913469869e5e.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20
ORIGINAL_ARTICLE
VISCOSITY COEFFICIENTS OF THE
A-PHASE OF SUPERFLUID He AT LOW
TEMPERATURES
It has been shown that the Boltzmann equation for the viscosity of the A-phase of
superfluid 3He at low temperatures has the same form as for a normal Ferrni liquid.
The viscosity coefficients A, B, C, D and E are derived exactly. The h , parameter
plays an important role in determining the temperature dependence of the viscosity
coefficients
https://jsciences.ut.ac.ir/article_31418_1ff113f906924727df56383a37f36e83.pdf
1995-06-01T11:23:20
2020-06-06T11:23:20