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Ukraina w drodze do innowacyjnego rozwoju

Petryna M., Tarajewska L., Werbowśka L.

Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie

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2015

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Nr 66

113--122

PL

Zakończenie pierwszego i początek drugiego etapu przemian transformacyjnych w gospodarce Ukrainy zbiegły się w czasie z rozpowszechnieniem i pogłębieniem globalnych tendencji, które charakteryzują się wzrostem roli człowieka i ekonomii poprzez intensyfikację działalności innowacyjnej. Nowe odkrycia, wynalazki, technologie, nowe produkty tworzą się nie sporadycznie, a systematycznie i stają się stałą składową ekonomicznych procesów w ramach międzynarodowej współpracy. Ze względu na to, że branże wysokich technologii zajmują coraz większą część w światowej gospodarce, rosnąca konkurencja wymaga wszechstronnego podwyższenia jakości nowych towarów, wskutek wyższych wymagań kwalifikacyjnych człowieka.

EN

The first stage of transformational changes in the economy of Ukraine and the beginning of the second coincided with the spread and deepening of the global trends that are characterized by an increase in the role of man, celebrities and protected? Ieczeniem intensification of economic growth at the expense of innovative activity. New discoveries, inventions, technologies, new products generally do not make a cameo appearance as a systematic and become a permanent component of economic processes in the context of international cooperation. And due to the fact that high-tech industries are a growing sovereign high importance in the global economy, increasing competition requires a comprehensive improve the quality of new products, as a result, more high requirements for professional human capabilities, its preparation and qualifications, educational level generally.

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Two Independent Hydrogen Bonded Complexes of Bis(1-piperidiniumacetate) Hydrochloride in the Crystal and in the PM3 Optimized Structure

Dega-Szafran Z., Petryna M., Dutkiewicz G., Kosturkiewicz Z.

Polish Journal of Chemistry

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2003

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Vol. 77 / nr 11

1501-1512

EN

Bis(1-piperidiniumacetate) hydrochloride, (PAA)2H+źCl-, has been synthesized and its structure solved by X-ray diffraction. The crystals belong to the triclinic system with two symmetrically independent hydrogen bonded complexes, denoted A and B, at two different inversion centers. The compound crystallizes in the space group P1 with a = 8.559(1), b = 9.625(1), c = 11.441(1) A, _ = 74.85(1)°, _= 68.22(1)°, _ = 84.10(1)°, Z = 2, R = 0.036. Each complex consists of two 1-piperidiniumacetate moieties. Four 1-piperidiniumacetates, as zwitterions, are held together by a network of hydrogen bonds of the types OźźźHźźźO (2.462(3) and 2.463(3) A), N-HźźźO (2.755(2) A) and N-HźźźCl (3.167(2)A). Both N-H atoms in complex A interact with chlorine anions. A number of week C-HźźźCl contacts stabilize the three-dimensional crystal structure. In the isolated molecule of (PAA)2H+źCl- optimized by the PM3 method, there also are two independent hydrogen bonded complexes. In complex A the neutral form of 1-piperidineacetic acid interacts with its anionic form, while in complex B the 1-piperidiniumacetic acid, as a cation, forms a hydrogen bond with its zwitterionic form. FTIR spectrum of bis(1-piperidiniumacetate) hydrochloride has been analyzed and discussed.

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Aqueous Basicity and Proton Affinity of Zwitterionic W-(N-Methylpiperidine)-alkanocarboxylates and W-(N-Piperidine)-alkanocarboxylic Acids

Barczyński P., Dega-Szafran Z., Dulewicz E., Petryna M., Szafran M.

Polish Journal of Chemistry

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2000

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Vol. 74, nr 8

1149-1161

EN

Semiempirical geometry optimizations were performed for gaseous betaines. Four conformers were characterized and their PA values estimated. The PA values fulfilled the linear correlation with the aqueous pK values estimated in ref.1.