7069-05-8

Basic information

• Product Name: Calcium bis(quinoline-8-olate)
• Synonyms: Calcium bis(quinoline-8-olate);Einecs 230-360-6
• CAS NO: 7069-05-8
• Molecular Formula: 2C₉H₆NO*Ca
• Molecular Weight: 328.3781
• EINECS: 230-360-6
• Mol File: 7069-05-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 267°Cat760mmHg
• Flash Point: 143.1°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 0.00508mmHg at 25°C
• CAS DataBase Reference: Calcium bis(quinoline-8-olate)(CAS DataBase Reference)
• NIST Chemistry Reference: Calcium bis(quinoline-8-olate)(7069-05-8)
• EPA Substance Registry System: Calcium bis(quinoline-8-olate)(7069-05-8)

Safety Data

• Hazardous Substances Data: 7069-05-8(Hazardous Substances Data)

Usage

InChI:InChI=1/2C9H7NO.Ca/c2*11-8-5-1-3-7-4-2-6-10-9(7)8;/h2*1-6,11H;/q;;+2/p-2

Upstream product

• 2872-54-0 sodium 8-quinolinolate 
• 14336-71-1 calcium chloride 
• 148-24-3 8-quinolinol 

Relevant articles and documents

Strictly linear trinuclear Dy-Ca/Mg-Dy single-molecule magnets: The impact of long-range f-f ferromagnetic interactions on suppressing quantum tunnelling of magnetization leading to slow magnetic relaxation

The synthesis, structural characterization and magnetic properties of four heterometallic complexes with formulas Ln2M(OQ)8 [Ln(iii) = Dy, M(ii) = Ca (1), Mg (2); Ln(iii) = Er, M(ii) = Ca (3), Mg (4); HOQ = 8-hydroxyquinoline] are reported. Complexes display a perfectly linear arrangement of three metal ions involving two terminal Ln(iii) ions and one central alkaline earth M(ii) ion, and they are bridged by three phenolato oxygen atoms from three 8-hydroxyquinoline ligands. Direct-current (dc) magnetic susceptibility studies show that there exists a long-range ferromagnetic (FM) interaction between two f-electronic centers in Dy-based complexes 1 and 2 albeit they are separated by diamagnetic alkaline earth ions, and the FM interaction has been successfully reproduced by ab initio calculations. Alternating current (ac) magnetic susceptibility measurements indicate that complexes 1 and 2 exhibit significant single-molecule magnet (SMM) behaviors. This is mostly attributed to the parallel magnetic axes of individual Dy(iii) sites aligning closely to the Dy-M-Dy direction, and the linearly extending magnetic susceptibility tensors of each ion lead to the FM interaction. The dc and ac susceptibility studies of the intramolecularly diluted complexes reveal that the f-f coupling suppresses the QTMs significantly in the absence of the external magnetic field.

Method for preparing luminescent material 8-hydroxyquinoline calcium

The invention discloses a method for preparing 8-hydroxyquinoline calcium. The method comprises four steps of burdening: adding raw materials into a container at the molar ratio of calcium hydroxide to 8-hydroxyquinoline calcium of 1:2, and adding the raw materials into the deionized water for dissolving or dispersing uniformly at the molar ratio of raw material total amount to deionized water of 1kg:50L; reaction: heating and stirring for 4 hours at the temperature of 80-100DEG C; cooling and filtering: cooling to room temperature, filtering, and washing with the deionized water at 85DEG C for 3-5 times; drying: transforming the product into an oven, raising the room temperature to 105DEG C and keeping temperature for 1h, cooling to room temperature and discharging to obtain the 8-hydroxyquinoline calcium. The method disclosed by the invention can be used for solving the problems that an alkali neutralization reagent is needed to add in the tradition, a series of complex operations such as removal and purification of side products can be omitted at the same time and low yield and purity of products are caused by side products and surplus operations. The method disclosed by the invention has short process, high purity and no need of alkali neutralization reagent, is simple to operate and easy to control, is low in cost and environmentally friendly.