메뉴 건너뛰기




Volumn 49, Issue 4, 2010, Pages 1280-1282

Structural and catalytic performance of a polyoxometalate-based metal-organic framework having a lanthanide nanocage as a secondary building block

Author keywords

[No Author keywords available]

Indexed keywords


EID: 77249162788     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic901504q     Document Type: Article
Times cited : (98)

References (50)
  • 25
    • 77249107186 scopus 로고    scopus 로고
    • For recent examples, see:
    • For recent examples, see:
  • 46
    • 77249092654 scopus 로고    scopus 로고
    • note
    • Compound 1 was prepared from a hydrothermal reaction by putting R-HoH2BW12O40 3 nH2O, HoCl3 36H2O, 4, 40-bipyridine-N, N0-dioxide hydrate, hexahydropyrazine, and water with a molar ratio of 1:3:3:7:1600 into a Teflon-lined stainless steel autoclave and keeping the resulting mixture under autogenous pressure at 120Ćfor 3 days. Yellow crystals suitable for single-crystal X-ray structure analysis were isolated and washed with distilled water (about 70% yield based on HoH2BW12O40 3 nH2O). Anal. Calcd for C128H175B3Ho4N28O172W36: C, 12.63; H, 1.45; N, 3.22; B, 0.27; W, 54.39; Ho, 5.42. Found: C, 12.55; H, 1.50; N, 3.20; B, 0.25; W, 54.19; Ho, 5.52. IR (KBr, cm-1): three characteristic asymmetric vibrations from heteropolyanions, ν (W-Oc) 809, ν (B-Oa) 905, ν (B-Od) 955; four characteristic vibrations from dpdo molecules, ν (N-O) 1227, ν (ring) 1473, ν (C-H, in-plane) 1180, ν (N-O) 839.
  • 47
    • 77249154724 scopus 로고    scopus 로고
    • note
    • Crystal data of 1 for C128H175B3Ho4N28O172W36, Mr = 12 168.71, triclinic, space group P1 with a = 18.922 (1) A °, b = 20.038 (1) A °, c = 20.789 (1) A °, V=6160.4 (3) A ° 3; Z=1; Fcalcd=3.280 g cm-3; T=293 (2) K. The final refinement gave R1=0.0598, wR2=0.1270, and GOF=1.03 for 11 697 observed reflections with I > 2σ (I) Hydrolysis of BNPP in the absence of a metal complex was almost negligible, compared to that of the catalytic reaction; however, the final value of kobs was also adjusted for the background cleavage.
  • 49
    • 77249136842 scopus 로고    scopus 로고
    • The pH of the solutions was adjusted with hydrochloric acid and NaOH and measured before and after the hydrolysis reaction
    • The pH of the solutions was adjusted with hydrochloric acid and NaOH and measured before and after the hydrolysis reaction.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.