A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate

Michael A. Lawandy, Long Pan, Xiaoying Huang, Jing Li, Tan Yuen, C. L. Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Hydrothermal reactions of rare-earth metal acetates and nitrates with oxalic acid (H2C2O4) and 3,5-pyridinedicarboxylic acid (H2pddc) in triethylamine/water solutions have yielded five isostructural polymers with the general formula: [Ln(pddc)(C2O4)1/2(H2O)2] ·H2O. [Ln = La(1), Pr(2), Nd(3), Eu(4) and Er(5)]. These compounds crystallize in monoclinic crystal system, space group P21/n, Z = 4, with only slight variations in their unit cell parameters: 1 a = 7.747(2), b = 9.954(2), c = 15.134(3) Å, β = 98.64(3)°, V= 1153.8(4) Å3; 2 a = 7.707(2), b = 9.895(2), c = 15.006(3) Å, β = 98.54(3)°, V = 1131.7(4) Å3; 3 a = 7.688(2), b = 9.897(2), c = 14.955(3) Å, β = 98.43(3)°, V = 112 5.6(4) Å3; 4 a = 7.638(2), b = 9.842(2), c = 14.809(3) Å, β = 98.42(3)°, V = 1101.2(4) Å3; 5 a = 7.573(2), b = 9.761(2) Å, c = 14.630(3) Å, β = 98.10(3)°, V= 1070.7(4) Å3. The structure of these compounds is composed of 2D Ln(pddc) layers that are interconnected by chelating oxalate. Within the layer, each rare-earth metal forms a monodentate bond with each of the four pddc groups. The metal centers in the neighboring layers are bridged through μ4-oxalate, resulting in a three-dimensional framework. The remaining two sites around the eight-coordinate Ln are occupied by water molecules. Compounds 2, 3, and 5 exhibit paramagnetic behavior and 1 is diamagnetic. They are thermally stable up to 250°C.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsM Geselbracht, J Greedan, D Johnson, M A Subramanian
Volume658
Publication statusPublished - 2001
EventSolid - State Chemistry of Inorganic Materials III - Boston, MA, United States
Duration: Nov 27 2000Nov 30 2000

Other

OtherSolid - State Chemistry of Inorganic Materials III
CountryUnited States
CityBoston, MA
Period11/27/0011/30/00

Fingerprint

Rare Earth Metals
Lanthanoid Series Elements
Oxalates
Rare earth elements
Oxalic Acid
Rare earths
Water
Chelation
Metals
Nitrates
Polymers
Acetates
Oxalic acid
Crystals
Molecules
Acids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Lawandy, M. A., Pan, L., Huang, X., Li, J., Yuen, T., & Lin, C. L. (2001). A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate. In M. Geselbracht, J. Greedan, D. Johnson, & M. A. Subramanian (Eds.), Materials Research Society Symposium - Proceedings (Vol. 658)

A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate. / Lawandy, Michael A.; Pan, Long; Huang, Xiaoying; Li, Jing; Yuen, Tan; Lin, C. L.

Materials Research Society Symposium - Proceedings. ed. / M Geselbracht; J Greedan; D Johnson; M A Subramanian. Vol. 658 2001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lawandy, MA, Pan, L, Huang, X, Li, J, Yuen, T & Lin, CL 2001, A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate. in M Geselbracht, J Greedan, D Johnson & MA Subramanian (eds), Materials Research Society Symposium - Proceedings. vol. 658, Solid - State Chemistry of Inorganic Materials III, Boston, MA, United States, 11/27/00.
Lawandy MA, Pan L, Huang X, Li J, Yuen T, Lin CL. A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate. In Geselbracht M, Greedan J, Johnson D, Subramanian MA, editors, Materials Research Society Symposium - Proceedings. Vol. 658. 2001
Lawandy, Michael A. ; Pan, Long ; Huang, Xiaoying ; Li, Jing ; Yuen, Tan ; Lin, C. L. / A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate. Materials Research Society Symposium - Proceedings. editor / M Geselbracht ; J Greedan ; D Johnson ; M A Subramanian. Vol. 658 2001.
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title = "A new three-dimensional lanthanide framework constructed by oxalate and 3,5-pyridinedicarboxylate",
abstract = "Hydrothermal reactions of rare-earth metal acetates and nitrates with oxalic acid (H2C2O4) and 3,5-pyridinedicarboxylic acid (H2pddc) in triethylamine/water solutions have yielded five isostructural polymers with the general formula: [Ln(pddc)(C2O4)1/2(H2O)2] ·H2O. [Ln = La(1), Pr(2), Nd(3), Eu(4) and Er(5)]. These compounds crystallize in monoclinic crystal system, space group P21/n, Z = 4, with only slight variations in their unit cell parameters: 1 a = 7.747(2), b = 9.954(2), c = 15.134(3) {\AA}, β = 98.64(3)°, V= 1153.8(4) {\AA}3; 2 a = 7.707(2), b = 9.895(2), c = 15.006(3) {\AA}, β = 98.54(3)°, V = 1131.7(4) {\AA}3; 3 a = 7.688(2), b = 9.897(2), c = 14.955(3) {\AA}, β = 98.43(3)°, V = 112 5.6(4) {\AA}3; 4 a = 7.638(2), b = 9.842(2), c = 14.809(3) {\AA}, β = 98.42(3)°, V = 1101.2(4) {\AA}3; 5 a = 7.573(2), b = 9.761(2) {\AA}, c = 14.630(3) {\AA}, β = 98.10(3)°, V= 1070.7(4) {\AA}3. The structure of these compounds is composed of 2D Ln(pddc) layers that are interconnected by chelating oxalate. Within the layer, each rare-earth metal forms a monodentate bond with each of the four pddc groups. The metal centers in the neighboring layers are bridged through μ4-oxalate, resulting in a three-dimensional framework. The remaining two sites around the eight-coordinate Ln are occupied by water molecules. Compounds 2, 3, and 5 exhibit paramagnetic behavior and 1 is diamagnetic. They are thermally stable up to 250°C.",
author = "Lawandy, {Michael A.} and Long Pan and Xiaoying Huang and Jing Li and Tan Yuen and Lin, {C. L.}",
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AU - Pan, Long

AU - Huang, Xiaoying

AU - Li, Jing

AU - Yuen, Tan

AU - Lin, C. L.

PY - 2001

Y1 - 2001

N2 - Hydrothermal reactions of rare-earth metal acetates and nitrates with oxalic acid (H2C2O4) and 3,5-pyridinedicarboxylic acid (H2pddc) in triethylamine/water solutions have yielded five isostructural polymers with the general formula: [Ln(pddc)(C2O4)1/2(H2O)2] ·H2O. [Ln = La(1), Pr(2), Nd(3), Eu(4) and Er(5)]. These compounds crystallize in monoclinic crystal system, space group P21/n, Z = 4, with only slight variations in their unit cell parameters: 1 a = 7.747(2), b = 9.954(2), c = 15.134(3) Å, β = 98.64(3)°, V= 1153.8(4) Å3; 2 a = 7.707(2), b = 9.895(2), c = 15.006(3) Å, β = 98.54(3)°, V = 1131.7(4) Å3; 3 a = 7.688(2), b = 9.897(2), c = 14.955(3) Å, β = 98.43(3)°, V = 112 5.6(4) Å3; 4 a = 7.638(2), b = 9.842(2), c = 14.809(3) Å, β = 98.42(3)°, V = 1101.2(4) Å3; 5 a = 7.573(2), b = 9.761(2) Å, c = 14.630(3) Å, β = 98.10(3)°, V= 1070.7(4) Å3. The structure of these compounds is composed of 2D Ln(pddc) layers that are interconnected by chelating oxalate. Within the layer, each rare-earth metal forms a monodentate bond with each of the four pddc groups. The metal centers in the neighboring layers are bridged through μ4-oxalate, resulting in a three-dimensional framework. The remaining two sites around the eight-coordinate Ln are occupied by water molecules. Compounds 2, 3, and 5 exhibit paramagnetic behavior and 1 is diamagnetic. They are thermally stable up to 250°C.

AB - Hydrothermal reactions of rare-earth metal acetates and nitrates with oxalic acid (H2C2O4) and 3,5-pyridinedicarboxylic acid (H2pddc) in triethylamine/water solutions have yielded five isostructural polymers with the general formula: [Ln(pddc)(C2O4)1/2(H2O)2] ·H2O. [Ln = La(1), Pr(2), Nd(3), Eu(4) and Er(5)]. These compounds crystallize in monoclinic crystal system, space group P21/n, Z = 4, with only slight variations in their unit cell parameters: 1 a = 7.747(2), b = 9.954(2), c = 15.134(3) Å, β = 98.64(3)°, V= 1153.8(4) Å3; 2 a = 7.707(2), b = 9.895(2), c = 15.006(3) Å, β = 98.54(3)°, V = 1131.7(4) Å3; 3 a = 7.688(2), b = 9.897(2), c = 14.955(3) Å, β = 98.43(3)°, V = 112 5.6(4) Å3; 4 a = 7.638(2), b = 9.842(2), c = 14.809(3) Å, β = 98.42(3)°, V = 1101.2(4) Å3; 5 a = 7.573(2), b = 9.761(2) Å, c = 14.630(3) Å, β = 98.10(3)°, V= 1070.7(4) Å3. The structure of these compounds is composed of 2D Ln(pddc) layers that are interconnected by chelating oxalate. Within the layer, each rare-earth metal forms a monodentate bond with each of the four pddc groups. The metal centers in the neighboring layers are bridged through μ4-oxalate, resulting in a three-dimensional framework. The remaining two sites around the eight-coordinate Ln are occupied by water molecules. Compounds 2, 3, and 5 exhibit paramagnetic behavior and 1 is diamagnetic. They are thermally stable up to 250°C.

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