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Volumn 13, Issue 8, 2010, Pages 972-975

Three new polyoxometalate-based hybrids prepared from choline chloride/urea deep eutectic mixture at room temperature

Author keywords

Ambient temperature; Deep eutectic mixture; Green routine; Ionic liquid; Polyoxometalate

Indexed keywords


EID: 77953869859     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.inoche.2010.05.010     Document Type: Article
Times cited : (34)

References (39)
  • 4
  • 24
    • 77953872457 scopus 로고    scopus 로고
    • Synthesis of 1: Na2MoO4·2H2O (1.35 g, 5.58 mmol) was added to 8 mL choline chloride/urea eutectic mixture with stirring, after the Na2MoO4·2H2O was dissolved completely, NaIO4 (0.20 g, 0.94 mmol) was added to the solution. After ten minutes, the glacial acetic acid (0.5 mL) and water (0.4 mL) were added to above solution, stirring for 4 hours in air at 30 °C. The white suspension was filtered and the filterate was kept at room temperature. Colorless plate crystals of 1 were isolated after 3 days. The products were collected by filtration, washed with absolute alcohol and dried in vacuum desiccator at 80 °C for half an hour (yield: 64% based on Mo, Thermal gravimetric (TG) analyses were carried out to detect the thermal stability of 1 (Fig. S11, Elemental Anal. Calcd (found) for the compound 1 (wt, Mo 38.95 (39.14, C 8.12 (7.93, H 3.48 (3.31, N 1.89 (1.95, FT-IR data (cm-1, 3452(br, 1613(m, 1478(m, 1411(w, 1342(w, 1290(w, 1054(m, 946s, 9
    • -1): 3452(br), 1613(m), 1478(m), 1411(w), 1342(w), 1290(w), 1054(m), 946(s), 906(s), 690(s), 632(s), 455(s).
  • 25
    • 77953872641 scopus 로고    scopus 로고
    • Crystal data for 1: C10H34IMo6N2Na2O34, M, 1474.91, Monoclinic, space group C2/m, a, 21.012(4)Å, b, 12.907(3)Å, c, 7.3450(15)Å, β, 109.01(3)° V, 1883.4(7)Å3, Z, 2, Dcalc, 2.601 mg m-3, T, 150(2) K, R1, 0.0375
    • -3, T = 150(2) K, R1 = 0.0375.
  • 28
    • 77953871964 scopus 로고    scopus 로고
    • Crystal data for 2: C28H108Al2Mo12N20Na2O64, M, 3000.56, Monoclinic, space group C2, a, 24.786(5)Å, b, 9.819(2)Å, c, 21.285(4)Å, β, 120.32(3)° V, 4471.7(16)Å3, Z, 2, Dcalc, 2.228 mg m-3, T, 150(2) K, R1, 0.0581
    • -3, T = 150(2) K, R1 = 0.0581.
  • 36
    • 77953869518 scopus 로고    scopus 로고
    • Crystal data for 3: C16H92Mo14N14Na8O75, M, 3208.12, Orthorhombic, space group Fdd2, a, 32.240(6)Å, b, 38.563(8)Å, c, 17.199(3)Å, V, 21384(7, Z, 8, Dcalc, 1.993 mg m-3, T, 150(2) K, R1, 0.0407
    • -3, T = 150(2) K, R1 = 0.0407.
  • 39
    • 77953870498 scopus 로고    scopus 로고
    • Compound 1 (0.005 g) was dissolved in 200 mL rhodamine B (RhB) solutions (2.0 × 10-5 mol/L, magnetically stirred in the dark for about 30 min. The solution was then exposed to UV irradiation from a 125 W Hg lamp with a distance of 4 5 cm between the liquid surface and the lamp. The solution was kept stirring during irradiation. Every 30 minutes intervals, 3 mL of samples were taken out from the beaker and subsequently analyzed by UV-visible spectroscopy. After the initial amount of RhB had degraded, the same amount of RhB was added into the system again, the RhB was degraded for the second cycle. Repeat the procedure for another three times. An identical procedure above-mentioned was used in the following experiments except compound 1, which was replaced by 0.012 g (2 × 10-5 mol/L) compound 2 and the 60 minutes time interval
    • -5 mol/L) compound 2 and the 60 minutes time interval.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.