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Ranko P. Bontchev

Sandia National Laboratories

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Featured researches published by Ranko P. Bontchev.

Transition Metal Chemistry | 2003

A mononuclear complex of copper(II) with a calcium channel antagonist nifedipine. Synthesis, properties, crystal structure

P.R. Bontchev; D. Mehandjiev; Bojidarka B. Ivanova; Ranko P. Bontchev

The complexation processes between the calcium channel antagonist drug nifedipine (Nif) and CuII lead to the formation of a mononuclear violet complex CuNif2Cl2(1). Monocrystals of (1) were isolated and their structure determined by X-ray diffraction. Copper is coordinated through N of the NH group of the ligand. The metal ion is coordinated also with two Cl− anions and the geometry of the CuN2Cl2 core is a near flat square. The magnetic and optical properties of (1) were also studied using electronic and i.r. spectra, e.p.r. and magnetochemical measurements.

Angewandte Chemie | 2006

Evolution of Polyoxoniobate Cluster Anions

Ranko P. Bontchev; May Nyman

Inorganic Chemistry | 2007

Copper-linked hexaniobate lindqvist clusters-variations on a theme.

Ranko P. Bontchev; E.L. Venturini; May Nyman

European Journal of Inorganic Chemistry | 2008

Synthesis of a Bulky Bis(carbene)borate Ligand – Contrasting Structures of Homoleptic Nickel(II) Bis(pyrazolyl)borate and Bis(carbene)borate Complexes

Ismael Nieto; Ranko P. Bontchev; Jeremy M. Smith

Polyhedron | 2005

Copper(II) complexes with 4-amino-α-(t-butylaminomethyl)-3,5-dichlorobenzyl alcohol hydrochloride (Clenbuterol). Crystal structures of the binuclear and mononuclear Cu(II) complexes with Clenbuterol

V.T. Getova; Ranko P. Bontchev; D. Mehandjiev; V. Skumryev; P.R. Bontchev

Carbohydrate Research | 2004

Crystal structure of sodium isosaccharate, NaC6H11O6·H2O

Ranko P. Bontchev; Robert C. Moore

Polyhedron | 2006

Complexes of 1-[2-[2-hydroxy-3-(propylamino)propoxy]phenyl]-3-phenyl-1-propanone (propafenone) with copper(II): Crystal structure of the mononuclear Cu(II) complex with propafenone

V.T. Getova; Ranko P. Bontchev; D. Mehandjiev; P.R. Bontchev

Solid State Sciences | 2004

A series of open-framework tin(II) phosphates: A[Sn4(PO4)3] (A = Na, K, NH4)

Ranko P. Bontchev; Robert C. Moore

Archive | 2007

Formation of Nanosized Apatite Crystals in Sediment for Containment and Stabilization of Contaminants

Robert C. Moore; Jim E. Szecsody; Michael J. Truex; Katheryn B. Helean; Ranko P. Bontchev; Calvin C. Ainsworth

Carbohydrate Research | 2005

Crystal structure and aqueous solubility of ammonium D-glucarate.

Ranko P. Bontchev; Robert C. Moore

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Robert C. Moore

Sandia National Laboratories

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Kathleen Caroline Holt

Sandia National Laboratories

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May Nyman

Oregon State University

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D. Mehandjiev

Bulgarian Academy of Sciences

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P.R. Bontchev

Sofia University

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V.T. Getova

Sofia University

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Calvin C. Ainsworth

Pacific Northwest National Laboratory

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E.L. Venturini

Sandia National Laboratories

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Hongting Zhao

Sandia National Laboratories

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Ismael Nieto

New Mexico State University

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