A Zn(Ⅱ) complex with nitronyl nitroxide radicals [Zn(NIT3Py)2Cl2](1)(NIT3Py=2-(3'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized by X-ray diffraction...A Zn(Ⅱ) complex with nitronyl nitroxide radicals [Zn(NIT3Py)2Cl2](1)(NIT3Py=2-(3'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized by X-ray diffraction crystal structure determination method.The complex has a mononuclear-metal structure in which each Zn(Ⅱ) ion adopts a distorted tetrahedral geometry and is coordinated by two Cl-anions and two pyridyl-N atoms from two NIT3Py radical ligands.The magnetic measurements show the weak antiferromagnetic interaction between the nitroxide radicals through the diamagnetic Zn(Ⅱ) ion.CCDC:292363.展开更多
A new nickl(Ⅱ) complex containing the thiazole-substituted nitroxide radical with the formula Ni(NIT2-thz) 2Cl 2(NIT2-thz=4,4,5,5-tetramethyl-2-(2′-thiazole)imidazolin-1-oxyl-3-oxide) was synthesized and its crystal...A new nickl(Ⅱ) complex containing the thiazole-substituted nitroxide radical with the formula Ni(NIT2-thz) 2Cl 2(NIT2-thz=4,4,5,5-tetramethyl-2-(2′-thiazole)imidazolin-1-oxyl-3-oxide) was synthesized and its crystal structure was determined. The magnetic property analysis indicates that there is strong antiferromagnetic interactions between Ni(Ⅱ) and radical(J=-71.82 cm -1).展开更多
Dinuclear copper complex with biradical, [Cu(hfac) 2] 2PhBNOM\[PhBNOM=2,5 bimethoxyl 1,4 bis(4,4,5,5 tetramethyllimidazoline 1 oxyl 3 oxide)phenyl, hfac=hexafluoroacetylacetonate], has been synthesized and characteriz...Dinuclear copper complex with biradical, [Cu(hfac) 2] 2PhBNOM\[PhBNOM=2,5 bimethoxyl 1,4 bis(4,4,5,5 tetramethyllimidazoline 1 oxyl 3 oxide)phenyl, hfac=hexafluoroacetylacetonate], has been synthesized and characterized. It crystallized in the monoclinic system; space group C2/c with a = \{1\^877 3(8)\} nm, b =1.359 8(5) nm, c =2.237 1(7) nm, β =97.24(3)°, Z =4, R = 0.096 1 , R w=0 094 4 .展开更多
In recent years the fascinating magnetic behaviors of single-molecule magnets(SMMs)and single-chain magnets(SCMs),such as the slow relaxation of magnet-isation,magnetic hysteresis and the
A novel one-dimensional (1D) Cu(Ⅱ) nitronyl nitroxide complex bridged by iminodiacetate dianion [Cu(NIT4Py)(IDA)]n,where NIT4Py=2-(4'-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and IDA= iminodiacetate...A novel one-dimensional (1D) Cu(Ⅱ) nitronyl nitroxide complex bridged by iminodiacetate dianion [Cu(NIT4Py)(IDA)]n,where NIT4Py=2-(4'-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and IDA= iminodiacetate dianion,was synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic,space group P21/c with a=0.921 09(10) nm,b=0.780 09(9) nm,c=2.486 3(3) nm,β=96.826(2)°. The Cu(Ⅱ) ion is five-coordinated with a distorted square-pyramidal geometry. Each iminodiacetate dianion bridges two Cu(Ⅱ) ions via a monodentate-tridentate mode into a 1D chain,and these 1D chains are further linked into a 2D network via hydrogen-bonding interactions.展开更多
文摘A Zn(Ⅱ) complex with nitronyl nitroxide radicals [Zn(NIT3Py)2Cl2](1)(NIT3Py=2-(3'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized by X-ray diffraction crystal structure determination method.The complex has a mononuclear-metal structure in which each Zn(Ⅱ) ion adopts a distorted tetrahedral geometry and is coordinated by two Cl-anions and two pyridyl-N atoms from two NIT3Py radical ligands.The magnetic measurements show the weak antiferromagnetic interaction between the nitroxide radicals through the diamagnetic Zn(Ⅱ) ion.CCDC:292363.
文摘A new nickl(Ⅱ) complex containing the thiazole-substituted nitroxide radical with the formula Ni(NIT2-thz) 2Cl 2(NIT2-thz=4,4,5,5-tetramethyl-2-(2′-thiazole)imidazolin-1-oxyl-3-oxide) was synthesized and its crystal structure was determined. The magnetic property analysis indicates that there is strong antiferromagnetic interactions between Ni(Ⅱ) and radical(J=-71.82 cm -1).
文摘Dinuclear copper complex with biradical, [Cu(hfac) 2] 2PhBNOM\[PhBNOM=2,5 bimethoxyl 1,4 bis(4,4,5,5 tetramethyllimidazoline 1 oxyl 3 oxide)phenyl, hfac=hexafluoroacetylacetonate], has been synthesized and characterized. It crystallized in the monoclinic system; space group C2/c with a = \{1\^877 3(8)\} nm, b =1.359 8(5) nm, c =2.237 1(7) nm, β =97.24(3)°, Z =4, R = 0.096 1 , R w=0 094 4 .
文摘In recent years the fascinating magnetic behaviors of single-molecule magnets(SMMs)and single-chain magnets(SCMs),such as the slow relaxation of magnet-isation,magnetic hysteresis and the
文摘A novel one-dimensional (1D) Cu(Ⅱ) nitronyl nitroxide complex bridged by iminodiacetate dianion [Cu(NIT4Py)(IDA)]n,where NIT4Py=2-(4'-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and IDA= iminodiacetate dianion,was synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic,space group P21/c with a=0.921 09(10) nm,b=0.780 09(9) nm,c=2.486 3(3) nm,β=96.826(2)°. The Cu(Ⅱ) ion is five-coordinated with a distorted square-pyramidal geometry. Each iminodiacetate dianion bridges two Cu(Ⅱ) ions via a monodentate-tridentate mode into a 1D chain,and these 1D chains are further linked into a 2D network via hydrogen-bonding interactions.
