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Robertha C. Howell

City University of New York

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Archive | 2002

Lanthanide Polyoxometalates: Building Blocks for New Materials

Qunhui Luo; Robertha C. Howell; Lynn C. Francesconi

Lanthanide polyoxometalates can be used in conventional syntheses to build up two dimensional materials. Linking up lacunary subunits is accomplished by lanthanide binding to terninal oxygen atoms of an adjacent polyoxometalate, forming dimers. The approppriate cations can link the dimers into a lattice, as found in the case of Al3+.

Inorganic Chemistry | 2001

Coordination of rare-earth elements in complexes with monovacant Wells-Dawson polyoxoanions

Qunhui Luo; Robertha C. Howell; Michaela Dankova; Judit Bartis; Clayton W. Williams; William DeW. Horrocks; Victor G. Young; Arnold L. Rheingold; Lynn C. Francesconi; Mark R. Antonio

Inorganic Chemistry | 2002

Lanthanide Complexes of [α-2-P2W17O61]10-: Solid State and Solution Studies

Qunhui Luo; Robertha C. Howell; Judit Bartis; Michaela Dankova; William DeW. Horrocks; and Arnold L. Rheingold; Lynn C. Francesconi

Inorganic Chemistry | 2006

Production and reactions of organic-soluble lanthanide complexes of the monolacunary dawson [α1-P2W17O61]10- polyoxotungstate

Cécile Boglio; Géraldine Lenoble; Carine Duhayon; Bernold Hasenknopf; René Thouvenot; Cheng Zhang; Robertha C. Howell; Benjamin P. Burton-Pye; Lynn C. Francesconi; Emmanuel Lacôte; Serge Thorimbert; Max Malacria; Carlos Afonso; Jean-Claude Tabet

Angewandte Chemie | 2001

A New Type of Heteropolyoxometalates formed from Lacunary Polyoxotungstate Ions and Europium or Yttrium Cations

Robertha C. Howell; Frances G. Perez; Sanhya Jain; William DeW. Horrocks; Arnold L. Rheingold; Lynn C. Francesconi

Inorganic Chemistry | 2005

Influence of Steric and Electronic Properties of the Defect Site, Lanthanide Ionic Radii, and Solution Conditions on the Composition of Lanthanide(lll) ¿ 1 -P 2 W 17 O 61 10- Polyoxometalates

Cheng Zhang; Robertha C. Howell; Qunhui Luo; Heidi L. Fieselmann; Louis J. Todaro; Lynn C. Francesconi

Journal of the American Chemical Society | 2008

31P Magic Angle Spinning NMR Spectroscopy of Paramagnetic Rare-Earth-Substituted Keggin and Wells−Dawson Solids

Wenlin Huang; Mark P. Schopfer; Cheng Zhang; Robertha C. Howell; Louis J. Todaro; Becky Gee; Lynn C. Francesconi; Tatyana Polenova

Journal of Cluster Science | 2006

Influence of the Lanthanide Ion and Solution Conditions on Formation of Lanthanide Wells–Dawson Polyoxotungstates

Cheng Zhang; Laurence Bensaid; Donna McGregor; Xikui Fang; Robertha C. Howell; Benjamin P. Burton-Pye; Qunhui Luo; Louis J. Todaro; Lynn C. Francesconi

Inorganic Chemistry | 2007

MO Tripeptide Diastereomers (M = 99/99mTc, Re): Models To Identify the Structure of 99mTc Peptide Targeted Radiopharmaceuticals

Melchor V. Cantorias; Robertha C. Howell; Louis J. Todaro; John E. Cyr; Dietmar Berndorff; Robin D. Rogers; Lynn C. Francesconi

Comptes Rendus Chimie | 2005

Synthesis of a cluster containing Eu(III) α2-P2W17O6110- and preliminary luminescence experiments

Cheng Zhang; Robertha C. Howell; Donna McGregor; Laurence Bensaid; Seyar Rahyab; Michael Nayshtut; Safet Lekperic; Lynn C. Francesconi

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Lynn C. Francesconi

City University of New York

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Benjamin P. Burton-Pye

City University of New York

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Donna McGregor

City University of New York

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Cheng Zhang

Hunter College

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Louis J. Todaro

Hoffmann-La Roche

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Qunhui Luo

Hunter College

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Melchor V. Cantorias

City University of New York

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William DeW. Horrocks

Pennsylvania State University

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Arnold L. Rheingold

University of California

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Edward Mausolf

University of Nevada

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