TY - JOUR
T1 - Four new MnII inorganic-organic hybrid frameworks with diverse inorganic magnetic Chains sequences
T2 - Syntheses, structures, magnetic, NLO, and dielectric properties
AU - Tian, Chong Bin
AU - He, Chao
AU - Han, Yun Hu
AU - Wei, Qi
AU - Li, Qi Peng
AU - Lin, Ping
AU - Du, Shao Wu
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/3/16
Y1 - 2015/3/16
N2 - Four new inorganic-organic hybrid manganese frameworks, formulated as [Mn(Am-Hip)2]·3H2O (1), [Mn2(ip)2(H2O)]·CH3OH (2), [Mn2(OH-ip)2(DMF)]·DMF (3), and (Me2NH2)[Mn4(sdba)4(Hsdba)(H2O)]·3H2O·2DMF (4) (Am-H2ip = 5-aminoisophthalic acid, H2ip = isophthalic acid, OH-H2ip = 5-hydroxyisophthalic acid, and H2sdba = 4,4′-sulfonyldibenzoic acid), have been prepared by solvothermal reactions of MnII ions with different polycarboxylate acids in the presence of LiNO3 or NH4NO3. Single-crystal X-ray diffraction studies reveal that the frameworks of 1-4 contain diverse MnII-oxygen inorganic magnetic chains sequences, -J1J1J1J1- for 1, -J1J2J1J2- for 2, -J1J1J2J2- for 3, and -J1J2J3J3- for 4. The sequence in 4 has never been seen for the magnetic chain compounds and is a new type of magnetic alternating sequence. Magnetic investigations indicate that these compounds all show weak antiferromagnetic couplings between the adjacent MnII ions. Magnetostructural analyses based on the data of 1-4 and other related MnII chain compounds imply that the magnitude of the magnetic coupling has some relationship with the Mn-O-Mn angle of the μ2-O bridge and the average Mn-O-C-O torsion angle of the carboxylate bridges. Compounds 2 and 4 crystallize in chiral and acentric space groups, and they both exhibit powder second harmonic generation (SHG) efficiencies approximately 0.6 and 0.9 times, respectively, that of the standard potassium dihydrogen phosphate (KDP) powder. In addition, the dielectric properties of 2 and 4 were also investigated.
AB - Four new inorganic-organic hybrid manganese frameworks, formulated as [Mn(Am-Hip)2]·3H2O (1), [Mn2(ip)2(H2O)]·CH3OH (2), [Mn2(OH-ip)2(DMF)]·DMF (3), and (Me2NH2)[Mn4(sdba)4(Hsdba)(H2O)]·3H2O·2DMF (4) (Am-H2ip = 5-aminoisophthalic acid, H2ip = isophthalic acid, OH-H2ip = 5-hydroxyisophthalic acid, and H2sdba = 4,4′-sulfonyldibenzoic acid), have been prepared by solvothermal reactions of MnII ions with different polycarboxylate acids in the presence of LiNO3 or NH4NO3. Single-crystal X-ray diffraction studies reveal that the frameworks of 1-4 contain diverse MnII-oxygen inorganic magnetic chains sequences, -J1J1J1J1- for 1, -J1J2J1J2- for 2, -J1J1J2J2- for 3, and -J1J2J3J3- for 4. The sequence in 4 has never been seen for the magnetic chain compounds and is a new type of magnetic alternating sequence. Magnetic investigations indicate that these compounds all show weak antiferromagnetic couplings between the adjacent MnII ions. Magnetostructural analyses based on the data of 1-4 and other related MnII chain compounds imply that the magnitude of the magnetic coupling has some relationship with the Mn-O-Mn angle of the μ2-O bridge and the average Mn-O-C-O torsion angle of the carboxylate bridges. Compounds 2 and 4 crystallize in chiral and acentric space groups, and they both exhibit powder second harmonic generation (SHG) efficiencies approximately 0.6 and 0.9 times, respectively, that of the standard potassium dihydrogen phosphate (KDP) powder. In addition, the dielectric properties of 2 and 4 were also investigated.
UR - http://www.scopus.com/inward/record.url?scp=84924912233&partnerID=8YFLogxK
U2 - 10.1021/ic502664e
DO - 10.1021/ic502664e
M3 - 文章
AN - SCOPUS:84924912233
SN - 0020-1669
VL - 54
SP - 2560
EP - 2571
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 6
ER -