Lanthanide oxalatophosphonates with two- and three-dimensional structures

Journal Article · Sat May 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.03.008· OSTI ID:21372605

Tinghai, Yang ^[1]; Dengke, Cao; Yizhi, Li ^[1]

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1. State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing 210093 (China)

Reactions of lanthanide nitrate, oxalate sodium and 2-pyridylmethylphosphonic acid (2-pmpH{sub 2}) under hydrothermal conditions result in five new lanthanide oxalatophosphonates with two types of structures. Compounds [Ln{sub 4}(ox){sub 5}(2-pmpH){sub 2}(H{sub 2}O){sub 7}].5H{sub 2}O [Ln{sup 3+}=Gd (1), Tb (2), Dy (3); ox{sup 2-}=C{sub 2}O{sub 4}{sup 2-}] exhibit a double layer structure, made up of net-like {l_brace}Ln{sub 4}(ox){sub 5}{r_brace}{sub n} layers containing Ln{sub 10}(ox){sub 10} rings which are connected by 2-pmpH{sup -}. While compounds [Ln{sub 4}(ox){sub 5}(2-pmpH){sub 2}(H{sub 2}O){sub 6}].6H{sub 2}O [Ln{sup 3+}=Ho (4), Yb (5)] display a three-dimensional framework structure in which the {l_brace}Ln{sub 4}(ox){sub 5}{r_brace}{sub n} layers are cross-linked by 2-pmpH. The solid state luminescent and magnetic properties are investigated. - Graphical abstract: Compounds [Ln{sub 4}(ox){sub 5}(2-pmpH){sub 2}(H{sub 2}O){sub 7}].5H{sub 2}O (Ln=Gd, Tb, Dy; 2-pmp=2-pyridylmethylphosphonate) and [Ln{sub 4}(ox){sub 5}(2-pmpH){sub 2}(H{sub 2}O){sub 6}].6H{sub 2}O (Ln=Ho, Yb) with 2D and 3D structures, respectively, are reported.

• OSTI ID: 21372605
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 5; Other Information: DOI: 10.1016/j.jssc.2010.03.008; PII: S0022-4596(10)00086-1; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL STRUCTURE
DYSPROSIUM COMPOUNDS
GADOLINIUM COMPOUNDS
LAYERS
LUMINESCENCE
MAGNETIC PROPERTIES
NITRATES
OXALATES
PHOSPHONIC ACIDS
TERBIUM COMPOUNDS
CARBOXYLIC ACID SALTS
EMISSION
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PHOTON EMISSION
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS