Zirconium nitrate (zirconyl)

• CAS: 12372-57-5
• Catalog Number: ACM12372575
• Category: Main Products
• Molecular Weight: 339.24
• Molecular Formula: Zr(NO3)4·3H₂O
• Synonyms: ZIRCONIUM NITRATE (ZIRCONYL);dsicnan zirkonicity
• IUPAC Name: zirconium(4+);tetranitrate
• Canonical SMILES: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Zr+4]
• InChI Key: OERNJTNJEZOPIA-UHFFFAOYSA-N
• Density: 1.4
• EC Number: 237-324-9
• Exact Mass: 337.85600
• H-Bond Acceptor: 12
• H-Bond Donor: 0
• UN Number: 2728

Case Study

Zirconium Nitrate Doped L-Alanine Nonlinear Optical Single Crystals

Suresh, N., et al. Journal of Materials Science: Materials in Electronics, 2020, 31, 16737-16745.

Zirconium nitrate doped L-alanine (ZNLA) nonlinear optical single crystals were grown at room temperature using a low-temperature solution growth slow evaporation technique. Compared with pure L-alanine (LA) single crystals, the obtained ZNLA single crystals showed higher optical transparency. The relative second harmonic efficiency of the ZNLA single crystal is 1.47 times that of KDP, is stable at 248.35°C, and has negative photoconductivity.
ZNLA single crystal preparation procedure
· A mixture of L-alanine (16.8 g) and 0.1 mol% zirconium nitrate (3.4 g) was dissolved in 100 ml of double-distilled water at room temperature. The solution was then stirred continuously for approximately 6 hours using a magnetic stirrer to achieve a homogeneous and fully saturated solution.
· The resulting solution was filtered twice using No. 1 quality Whatman filter paper and covered with a perforated polythene sheet to prevent dust accumulation. It was then placed in an undisturbed location to allow for slow evaporation.
· After approximately 45 days, a high-quality ZNLA crystal measuring 20×5×4mm3 was obtained, which was clear, transparent, and colorless. The quality of ZNLA was enhanced by recrystallizing the crystals three times.

Zirconium Nitrate as a Catalyst for the Synthesis of N-Substituted Pyrroles

Hasaninejad, Alireza, et al. RSC advances, 2012, 2(15), 6174-6177.

The synthesis of N-substituted pyrroles (3-pyrrolyl-indolinones and pyrrolylindeno[1,2-b]quinoxalines) was efficiently achieved by condensation reaction in aqueous medium using catalytic amounts of zirconium nitrate [Zr(NO3)4] as a water-resistant Lewis acid catalyst.
Synthesis procedure of N-substituted pyrroles
· In a 15 mL round-bottomed flask connected to a reflux condenser, Isatin derivatives or 11H-indeno[1,2-b]quinoxalin-11-one derivatives (2 mmol), 4-hydroxyproline (2 mmol), and Zr(NO3)4 (0.2 mmol) were combined with EtOH-H2O in a 3:1 ratio. The mixture was stirred at 80°C for a specific period of time.
· Following this, the reaction mixture was cooled to room temperature, and H2O (30 mL) was added. The resulting crude products were collected by filtration, dried, and purified using column chromatography with n-hexane-EtOAc in a 3:1 ratio as the eluent.
· After isolating the product, the filtrate was subjected to extraction using CHCl3 (2 × 15 mL). The aqueous layer containing Zr(NO3)4 was separated, and the solvent was evaporated to yield approximately 5 mL of an aqueous solution of Zr(NO3)4. The catalyst was then reused with fresh ethanol and substrates in the subsequent run under the same reaction conditions.