稀土硝酸盐与组氨酸固体配合物合成及杀菌活性试验

水体系中合成了组成为Ln（NO3）3（His）3·2H2O固体配合物，用元素分析、X粉未衍射、红外光谱对配合物进行了表征，采用厚平板洞穴法试验了配合物杀菌活性。     

The use of cesium dibenzyl and diphenyl phosphates for stereoselective synthesis of glycosyl phosphate derivatives

Peracetates of β-glycosyl dibenzyl phosphates are formed efficiently in the reaction of cesium dibenzyl phosphate with peracetyl-α-glycosyl nitrates derived froml-fucopyranose,d-galactopyranose, and 2-azido-2-deoxy-d-galactopyranose or with tri-O-acetyl-α-l-fucopyranosyl bromide. On the contrary, the reaction of the above-mentioned glycosyl nitrates with cesium diphenyl phosphate leads to thermodynamically more stable α-glycosyl diphenyl phosphatevia intermediate formation of the corresponding β-anomers. Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1924–1928, November, 2000.     

Reliable evaluation of molecular structure of methyl 3-O-nitro-α-d-glucopyranoside and its intermediates by means of solid-state NMR spectroscopy and DFT optimization in the absence of appropriate crystallographic data

In this paper the comparative structural analysis of a series of compounds (methyl α-d-glucopyranoside, methyl 4,6-O-ethylidene-α-d-glucopyranoside (2), methyl 2,3-di-O-nitro-4,6-O-ethylidene-α-d-glucopyranoside and methyl 3-O-nitro-4,6-O-ethylidene-α-d-glucopyranoside) by way of synthesis leading to methyl 3-O-nitro-α-d-glucopyranoside (5) is reported. The title compound (5) is a novel d-glucosidic mononitrate having potential biological activity against cardiovascular diseases. The structural analysis was supported by single-crystal X-ray diffraction (XRD), ¹³C CP/MAS NMR spectroscopy and DFT calculations. In the case of 2 and 5, XRD analysis could not be performed due to the fact that 2 is highly hygroscopic and 5 forms improper crystals. However, the molecular structures of 2 and 5 were obtained on the basis of experimental (existing XRD data for similar compounds) and theoretical (DFT optimization) approaches. This showed of very good agreement with the ¹³C CP/MAS NMR spectral data.     

Solid Contact Nitrate Ion‐selective Electrode Based on Cobalt(II) Complex with 4,7‐Diphenyl‐1,10‐phenanthroline

Nitrates are a group of compounds widely distributed in the natural environment with many applications in various industries. Due to their ambiguous impact on the human body and suspicions of their carcinogenic activity, they have been very popular for decades and are the subject of research by many scientists in the field of medicine, biology and chemistry. Due to the need to monitor their content in environmental and food samples, various methods for their determination are developed. This paper proposes the use of a nitrate ion‐sensitive ion selective electrode with a membrane containing as the active ingredient a new cobalt(II) complex with 4,7‐diphenyl‐1,10‐phenanthroline (Bphen) of the formula Co(Bphen)₂(NO₃)₂(H₂O)₂. The obtained sensor showed the theoretical slope of the characteristic curve, a wide measuring range, as well as short response time and very good potential stability. It was successfully used for the determination of nitrates in real samples: in mineral water, tap water and river water from eastern Poland.     

A new family of energetic ionic liquids 1-amino-3-alkyl-1,2,3-triazolium nitrates

A new class of energetic ionic liquids based upon 1-amino-3-alkyl-1,2,3-triazolium nitrates (alkyl = methyl, ethyl, n-propyl, 2-propenyl, and n-butyl) has been synthesized and characterized by vibrational spectra, multinuclear NMR, elemental as well as contaminant analyses, and DSC studies. A single crystal X-ray study was carried out for 1-amino-3-methyl-1,2,3-triazolium nitrate and the details will be presented.     

Synthese und Struktur der ternären Ammoniumnitrate (NH4)2[M(NO3)5] (M = Tb?Lu,Y

Synthesis and Structure of the Ternary Ammonium Nitrates (NH₄)₂[M(NO₃)₅] (M = Tb? Lu, Y) Single crystals of the ternary ammonium nitrates (NH₄)₂[M(NO₃)₅] (M = Tb? Lu, Y) are obtained from the solution of the sesquioxides in a melt of NH₄NO₃ and sublimation of the excess NH₄NO₃. In the crystal structure of (NH₄)₂[Tm(NO₃)₅] (trigonal, P3₁, Z = 3; a = 1 123.76(8), c = 930.1(1) pm; R = 0.062; R_w = 0.034) Tm³⁺ is surrounded by five bidentate nitrate ligands. The isolated [Tm(NO₃)₅]^2? groups are held together by ammonium ions.     

Could marine aerosol contribute to deteriorate building materials from interior areas of lighthouses? An answer from the analytical chemistry point of view

In this work, a multianalytical methodology based on a combination of spectroscopic techniques such as Raman spectroscopy and micro energy dispersive X‐ray fluorescence spectroscopy, and soluble salt analysis by means of ion chromatography followed by a correlation analysis of these data was applied, in order to identify the nature of the deterioration compounds present in different building materials located on inner rooms from the ground floor of the Igueldo lighthouse (San Sebastian, Basque Country, North of Spain), and in order to prove if marine aerosol could contribute to cause deterioration processes in this kind of materials. The main deterioration compounds identified were sulfate and nitrate salts. Taking into consideration the positioning of some materials, a gypsum plaster covering them could be the sulfate source responsible of the crystallisation process of a wide variety of sulfate salts. Nevertheless, in some areas were no gypsum plaster remains are present, ammonium sulfate crystallisations were identified. The presence of this kind of sulfate could suggest a possible sulfate input coming from the migration of ammonium sulfate (among other sulfate salts) carried on marine aerosol, which can be deposited on the facade of the lighthouse and migrate to its inner areas. The possible source of nitrates that could cause the crystallisation of a wide variety of nitrate salts identified in this work could be the infiltration of ammonium nitrates coming from seagull droppings from outdoor to indoor areas. Copyright © 2013 John Wiley & Sons, Ltd.     

Solvent Extraction of Eu(III) by Dihexyl-N,N-Diethylcarbamoyl Methyl Phosphonate (DHDECMP) from Perchlorate and Nitrate Media

Eu(III) extraction by DHDECMP has been studied from aqueous solution of perchlorate and nitrate. In case of perchlorate the distribution of Eu was found to be first power dependent on pH and third power dependent on extractant concentration. From nitrate it was found that D for Eu(III) is also first power with respect to pH but second power dependency on DHDECMP. The reaction mechanisms have been suggested and discussed in the light of the data obtained. The effect of adding some electron donor compounds decreases the extractability of DHDECMP for Eu(III) but does not change the nature of extracted species. The equilibrium constants of all the extracted species have been calculated and discussed. The extractant behaves as a chelate in low acidic media and extracted complex species is suggested to be Eu(NO₃)₂DHDECMP·DHDECMP from nitrate solutions.     

Crystal structure and properties of [M(NH<Subscript>3</Subscript>)<Subscript>5</Subscript>Cl](NO<Subscript>3</Subscript>)<Subscript>2</Subscript>, (M = Ir,Rh, Ru)

The crystal structures of compounds from the series [M(NH₃)₅Cl](NO₃)₂, (M = Ir, Rh, Ru) were described. The compounds crystallized in the tetragonal crystal system, space group I4, Z = 2. Crystal data for [Ir(NH₃)₅Cl](NO₃)₂ (I): a = 7.6061(1) Å, b = 7.6061(1) Å, c = 10.4039(2) Å, V = 601.894(16) ų, ρ_calc = 2.410 g/cm³, R = 0.0087; [Rh(NH₃)₅Cl](NO₃)₂ (II): a = 7.5858(5) Å, b = 7.5858(5) Å, c = 10.41357(7) Å, V = 599.24(7) ų, ρ_calc = 1.926 g/cm³, R = 0.0255; [Ru(NH₃)₅Cl](NO₃)₂ (III): a = 7.5811(6) Å, b = 7.5811(6) Å, c = 10.5352(14) Å, V = 605.49(11) ų, ρ_calc = 1.896 g/cm³, R = 0.0266. The compounds were defined by IR spectroscopy and XRPA and thermal analyses.     

Crystal structure of a new polymorphic modification of β-K2[Pd(NO3)4]

X-ray diffraction is applied to study a new crystalline modification of K₂[Pd(NO₃)₄]-β-K₂[Pd(NO₃)₄]. It is found that the phase is isostructural with Na₂[Pd(NO₃)₄] and Rb₂[Pd(NO₃)₄]. Square coordination of the Pd atom is formed by oxygen atoms of monodentately coordinated nitrate groups. Original Russian Text Copyright ? 2009 by S. P. Khranenko, I. A. Baidina, and S. A. Gromilov __________ Translated from Zhurnal Strukturnoi Khimii, Vol. 50, No. 2, pp. 374–377, March–April, 2009.