Synthesis and Characterisation of Poly (Vinylpyrrolidone) – Nickel (II) Complexes

Anasuya, K; Veeraiah, M. K.; Hemalatha, P.; Manju, M.

doi:10.9790/5736-07816166

Cited by 12 publications

(1 citation statement)

References 14 publications

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“…This band shifts to 1510-1645 cm -1 in the studied complexes. Differences in the IR spectra of PVP and PVP-PdCl2, PVP-CuCl2, PVP-FeCl3 complexes are observed as a result of donor-acceptor interaction between the oxygen atom in the polymeric ligand PVP and metal ionscomplexing agents [18][19][20]. To study the surface of polymer-metal complexes, the method of scanning electron microscopy was used ( Figure 3).…”

Section: Results and Their Discussionmentioning

confidence: 99%

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Akbayeva¹,

Seilkhanova²,

Bakirova³

et al. 2019

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHST

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News of the Academy of sciences of the Republic of Kazakhstan 2 NAS RK is pleased to announce that News of NAS RK. Series of chemistry and technologies scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of chemistry and technologies in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of chemical sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Химия және технология сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан әрі the Science Citation Index Expanded, the Social Sciences Citation Index және the Arts & Humanities Citation Index-ке қабылдау мәселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Химия және технология сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті және беделді химиялық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия химии и технологий» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по химическим наукам для нашего сообщества.

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Section: Results and Their Discussionmentioning

confidence: 99%

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Akbayeva¹,

Seilkhanova²,

Bakirova³

et al. 2019

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHST

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Cocrystals, Coamorphous Phases and Coordination Complexes of γ‐ andε‐Lactams

Hall

Chambers

Musa

et al. 2021

Handbook of Pyrrolidone and Caprolactam Based Materials

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The strongly interacting lactam functional group in both γand ε-lactams makes them of considerable interest in the formation of multicomponent solids including a hugely diverse range of cocrystals, coordination complexes with lactam ligands and coamorphous phases. Cocrystals are structurally homogenous crystalline substances that are comprised of two or more chemically different neutral molecules generally in stoichiometric amounts that are connected by non-ionic and non-covalent interactions [1]. The Food and Drug Administration (FDA) classifies cocrystals as crystalline materials composed of two or more different molecules, typically Active Pharmaceutical Ingredients (API) and approved, non-toxic cocrystal former (coformer), in the same crystal lattice [2].Cocrystals fall under the umbrella of multi-component molecular solids, which encompasses crystalline forms such as solvates, hydrates, and lattice inclusion compounds as well as coamorphous materials. The relationships between these various solid forms are illustrated in Figure 1. Also included under multi-component crystalline solids are solid solutions in which one component is randomly distributed in a crystal of another [4]. Salts are also multi-component molecular solids, with the main difference between a salt and a cocrystal often being proton transfer from an acid to a base that occurs to give a salt in contrast to neutral molecule cocrystals. However, the distinction is a fine one since, depending on the temperature, salts and cocrystals can interconvert [5]. Generally, true cocrystals are regarded as being formed from components that are solids at room temperature, a definition which excludes solvates and hydrates. However, this narrowing would mean that some materials involving low melting solids might be regarded as cocrystals in some labs and not others despite that fact that there is no fundamental structural difference between a cocrystal and a solvate [1,6,7].

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