Magnetic material [Cu
3(N
3)
6(DMF)
2]
nand synthetic method
Technical field
The present invention relates to a kind of magnetic material [Cu
3(N
3)
6(DMF)
2]
nand synthetic method.
Background technology
Modem magnetic materials has been used among our life widely, for example, permanent magnetic material is used as to motor, is applied to the core material in transformer, the magneto optical disk using as memory, computer magnetic recording floppy disk etc.Can say, magnetic material is closely related with the every aspect of informationization, automation, electromechanical integration, national defence, national economy.For coordination compound magnetic material, explore the mechanism of its magnetic generation and set up the foundation that rational theoretical model is its fast development.From MOLECULE DESIGN, start with, rationally cutting molecular structure, both can economy develop magnetic complex quickly, can carry out modified with functional group to it again and change its magnetic.Along with people's going deep into magnetic theory and Coordinative Chemistry research, the complex molecule magnetic material more with practical value will be synthesized, and these there is the application of coordination compound magnetic material to cause a series of great technological innovations in fields such as space flight, aviation, military project, information, superconductions.
Summary of the invention
Object of the present invention is exactly for designing the functional material of synthetic magnetic property excellence, utilizing normal temperature solwution method synthetic technology to synthesize [Cu
3(N
3)
6(DMF)
2]
n.
[the Cu the present invention relates to
3(N
3)
6(DMF)
2]
nmolecular formula be: C
6h
14cu
3n
20o
2, molecular weight is: 589.02, DMF is N, N '-dimethyl formamide; Crystal structure data are in Table one, and bond distance's bond angle data are in Table two.
Table one [Cu
3(N
3)
6(DMF)
2]
ncrystallographic parameter
Table two [Cu
3(N
3)
6(DMF)
2]
nbond distance
and bond angle (°)
[Cu
3(N
3)
6(DMF)
2]
nsynthetic method concrete steps be:
(1) the analytically pure 3-ethyoxyl-Benzaldehyde,2-hydroxy of 0.125-0.25g is dissolved in to 10-20ml and analyzes pure N, in N '-dimethyl formamide (DMF) solution.
(2) in step (1) gained solution, add successively the analytically pure Copper dichloride dihydrate of 0.128-0.256g and 0.098-0.196g to analyze pure sodium azide, stir 10 minutes.
(3) in step (2) gained solution, adding the pure triethylamine of analysis to regulate pH is 6.5, stir after 20 minutes by the solution left standstill obtaining at room temperature, after three days, obtain black bulk crystals, filter, and with analyzing pure N, N '-dimethyl formamide (DMF) washes clean, obtains product [Cu after drying in air
3(N
3)
6(DMF)
2]
n.
[Cu
3(N
3)
6(DMF)
2]
nmagnetic property: between copper ion, have ferromagnetic exchange in molecule, its general performance is ferromagnetism.
The present invention has that technique is simple, with low cost, chemical constituent is easy to control, reproducible and output advantages of higher.
Accompanying drawing explanation
Fig. 1 is the present invention [Cu
3(N
3)
6(DMF)
2]
nstructure chart.
Fig. 2 is the embodiment of the present invention [Cu
3(N
3)
6(DMF)
2]
n2D stratiform figure, for clear, removed DMF molecule.
Fig. 3 is the embodiment of the present invention [Cu
3(N
3)
6(DMF)
2]
nχ
m-T, χ
mt-T curve chart.
Fig. 4 is the embodiment of the present invention [Cu
3(N
3)
6(DMF)
2]
nχ
m – 1-T curve chart.
Embodiment
Embodiment 1:
[the Cu the present invention relates to
3(N
3)
6(DMF)
2]
nmolecular formula be: C
6h
14cu
3n
20o
2
Molecular weight is: 589.02.
[Cu
3(N
3)
6(DMF)
2]
nsynthetic method concrete steps be:
(1) by 0.125 gram, analyze pure 3-ethyoxyl-Benzaldehyde,2-hydroxy and be dissolved in 10 milliliters of analytically pure N, in N '-dimethyl formamide (DMF) solution.
(2) in step (1) gained solution, add successively the analytically pure Copper dichloride dihydrate of 0.128g and the analytically pure sodium azide of 0.098g, stir ten minutes.
(3) in step (2) gained solution, add analytically pure triethylamine to be adjusted to pH=6.5, stir after 20 minutes, prepared mixed liquor is statically placed under room temperature, after three days, obtain black bulk crystals, filter, and with analyzing pure N, N '-dimethyl formamide (DMF) washes clean, obtains product [Cu after drying in air
3(N
3)
6(DMF)
2]
n.Output: 86 milligrams, productive rate: 58.4%, and measure polymer [Cu by single crystal diffractometer
3(N
3)
6(DMF)
2]
nmolecular structure, crystallographic parameter is in Table one, bond distance's bond angle is in Table two.
(4) product [Cu 0.0223 gram of step (3) being obtained
3(N
3)
6(DMF)
2]
nafter pulverizing, on magnetic tester device, carry out magnetic test, obtain magnetic test curve as accompanying drawing 2,3, [Cu
3(N
3)
6(DMF)
2]
nχ at room temperature
mt is 1.403cm
3kmol
– 1, along with temperature reduces, χ
mt raises gradually, reaches maximum 2.490cm to 14.5K
3kmol
– 1, be sharply down to subsequently 0.442cm
3kmol
– 1.To χ
m-T, χ
mt – T curve is analyzed and obtained the Lang De factor after matching is 2.27, and the magnetic exchange constant in molecule between copper ion is 14.49cm
– 1, the magnetic exchange constant of intermolecular copper ion is :-10.84cm
– 1.And χ
m – 1-T curve is deferred to Curie-Weiss law, and it is 24.59K that its matching is obtained to Wei Si constant, and Curie constant is 1.317cm
3kmol
– 1.Large and positive Wei Si constant, magnetic exchange constant and χ in molecule
mt-T curvilinear trend all implies in molecule and has ferromagnetic exchange between copper ion, and its general performance is ferromagnetism.
Embodiment 2:
[the Cu the present invention relates to
3(N
3)
6(DMF)
2]
nmolecular formula be: C
6h
14cu
3n
20o
2molecular weight is: 589.02.
[Cu
3(N
3)
6(DMF)
2]
nsynthetic method concrete steps be:
(1) 0.25 gram of analytically pure 3-ethyoxyl-Benzaldehyde,2-hydroxy is dissolved in to 20 milliliters and analyzes pure N, in N '-dimethyl formamide (DMF) solution.
(2) in step (1) gained solution, add successively the analytically pure Copper dichloride dihydrate of 0.256g and the analytically pure sodium azide of 0.196g, stir 10 minutes.
(3) in step (2) gained solution, add analytically pure triethylamine to be adjusted to pH=6.5, stir after 20 minutes, be statically placed under room temperature, after three days, obtain black bulk crystals, filter, and with analyzing pure N, N '-dimethyl formamide (DMF) solution washing is clean, after drying, obtains product [Cu in air
3(N
3)
6(DMF)
2]
n.
(4) product [Cu 0.0223 gram of step (3) being obtained
3(N
3)
6(DMF)
2]
nafter pulverizing, on magnetic tester device, carry out magnetic test, obtain magnetic test curve as accompanying drawing 2,3, [Cu
3(N
3)
6(DMF)
2]
nχ at room temperature
mt is 1.403cm
3kmol
– 1, along with temperature reduces, χ
mt raises gradually, reaches maximum 2.490cm to 14.5K
3kmol
– 1, be sharply down to subsequently 0.442cm
3kmol
– 1.To χ
m-T, χ
mt – T curve is analyzed and obtained the Lang De factor after matching is 2.27, and the magnetic exchange constant in molecule between copper ion is 14.49cm
-1, the magnetic exchange constant of intermolecular copper ion is :-10.84cm
– 1.And χ
m – 1-T curve is deferred to Curie-Weiss law, and it is 24.59K that its matching is obtained to Wei Si constant, and Curie constant is 1.317cm
3kmol
– 1.Large and positive Wei Si constant, magnetic exchange constant and χ in molecule
mt-T curvilinear trend all implies in molecule and has ferromagnetic exchange between copper ion, and its general performance is ferromagnetism.