Two RhIII-substituted polyoxoniobates and their base-induced transformation: [H2RhNb9O28]6− and [Rh2(OH)4Nb10O30]8−. Issue 47 (16th November 2015)

• Record Type: Journal Article
• Authors: Son, Jung-Ho; Casey, Willam H.
• Is Part Of: Dalton transactions. Volume 44:Issue 47(2015)
• Page Start: 20330
• Page End: 20333
• Publication Date: 2015-11-16
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt03797b
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Two new rhodium-substituted polyoxoniobates, [H2 RhNb9 O28 ] 6− (RhNb9 ) and [Rh2 (OH)4 Nb10 O30 ] 8− (Rh2 Nb10 ) are reported. Abstract : Two new rhodium-substituted polyoxoniobates, [H2 RhNb9 O28 ] 6− (RhNb9 ) and [Rh2 (OH)4 Nb10 O30 ] 8− (Rh2 Nb10 ) are reported. The two distinct Rh III -substituted niobate clusters behave differently when the pH is raised with TMAOH: the Rh2 Nb10 is stable until pH ∼ 12.7, but RhNb9 dissociates to form RhNb5 and RhNb10, similar to some of our other metal-substituted niobates, such as the MNb9 ions (M = Cr or Mn), which transform to MNb10 when the solution pH is raised.