TY - JOUR
T1 - Amino Acid Functionalization of {Ni6PW9}-Based Clusters Under Hydrothermal Conditions
AU - Cai, Bin
AU - Yang, Bai Feng
AU - He, Huan
AU - Zhao, Jun Wei
AU - Yang, Guo Yu
N1 - Publisher Copyright:
© 2014, Springer Science+Business Media New York.
PY - 2014/9/1
Y1 - 2014/9/1
N2 - Two novel hexa-nickel(II)-substituted Keggin-type {Ni6PW9}-based tungstophosphates [Ni6(μ3-Tris)(en)3(Pr)(damp)(H2O)2(B-α-PW9O34)]·10H2O (1) and [Ni6(μ3-Tris)(en)3(damp)2(H2O)2(B-α-PW9O34)]·7H2O (2) (en = ethylenediamine, Pr = CH3CH2COO−, damp = 2-aminoisobutyrate, Tris = pentaerythritol) were hydrothermally synthesized and characterized by IR spectra, elemental analyses, powder X-ray diffraction, thermogravimetric analyses, and single-crystal X-ray diffraction. Crystal data for 1: orthorhombic, Pca21, a = 21.6962(7) Å, b = 20.6398(5) Å, c = 14.7825(4) Å, β = 90º, V = 6619.7(3) Å3, Z = 4; for 2: orthorhombic, Pca21, a = 21.6978(9) Å, b = 20.6658(7) Å, c = 14.7767(4) Å, β = 90º, V = 6625.9(4) Å3, Z = 4. 1 consists of a {Ni6(μ3-Tris)(en)3(Pr)(damp)(H2O)2}9+ core and a [B-α-PW9O34]9− (PW9) unit and is covalently functionalized by one Pr and one damp, as well as en and Tris ligands. The structure of 2 is the same to 1 except that the Pr anion in 1 is substituted by the other damp ligand. Most interestingly, 1 contains four kinds of organic ligands, while 2 includes three kinds of organic ligands, which are first observed in polyoxometalate chemistry.
AB - Two novel hexa-nickel(II)-substituted Keggin-type {Ni6PW9}-based tungstophosphates [Ni6(μ3-Tris)(en)3(Pr)(damp)(H2O)2(B-α-PW9O34)]·10H2O (1) and [Ni6(μ3-Tris)(en)3(damp)2(H2O)2(B-α-PW9O34)]·7H2O (2) (en = ethylenediamine, Pr = CH3CH2COO−, damp = 2-aminoisobutyrate, Tris = pentaerythritol) were hydrothermally synthesized and characterized by IR spectra, elemental analyses, powder X-ray diffraction, thermogravimetric analyses, and single-crystal X-ray diffraction. Crystal data for 1: orthorhombic, Pca21, a = 21.6962(7) Å, b = 20.6398(5) Å, c = 14.7825(4) Å, β = 90º, V = 6619.7(3) Å3, Z = 4; for 2: orthorhombic, Pca21, a = 21.6978(9) Å, b = 20.6658(7) Å, c = 14.7767(4) Å, β = 90º, V = 6625.9(4) Å3, Z = 4. 1 consists of a {Ni6(μ3-Tris)(en)3(Pr)(damp)(H2O)2}9+ core and a [B-α-PW9O34]9− (PW9) unit and is covalently functionalized by one Pr and one damp, as well as en and Tris ligands. The structure of 2 is the same to 1 except that the Pr anion in 1 is substituted by the other damp ligand. Most interestingly, 1 contains four kinds of organic ligands, while 2 includes three kinds of organic ligands, which are first observed in polyoxometalate chemistry.
KW - Amino acid
KW - Covalent functionalization
KW - Hydrothermal synthesis
KW - Polyoxotungstoarsenate
UR - http://www.scopus.com/inward/record.url?scp=84956730892&partnerID=8YFLogxK
U2 - 10.1007/s10876-014-0706-4
DO - 10.1007/s10876-014-0706-4
M3 - Article
AN - SCOPUS:84956730892
SN - 1040-7278
VL - 25
SP - 1283
EP - 1293
JO - Journal of Cluster Science
JF - Journal of Cluster Science
IS - 5
ER -