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Page 1
Showing results for M. keggin
Search for M. Kesgin instead (2 results)
Enhanced catalysis of a vanadium-substituted Keggin-type polyoxomolybdate supported on the M(3)O(4)/C (M = Fe or Co) surface enables efficient and recyclable oxidation of HMF to DFF.
Cao YD, Mu WX, Gong M, Fan LL, Han J, Liu H, Qi B, Gao GG. Cao YD, et al. Dalton Trans. 2023 Nov 14;52(44):16303-16314. doi: 10.1039/d3dt02935b. Dalton Trans. 2023. PMID: 37855372
In this work, metal-organic framework-derived Fe(3)O(4)/C and Co(3)O(4)/C were designed as carriers for the vanadium-substituted Keggin-type polyoxomolybdate H(5)PMo(10)V(2)O(40).35H(2)O (PMo(10)V(2)). In this complex system, spinel oxides can effectively adsorb HMF molecu …
In this work, metal-organic framework-derived Fe(3)O(4)/C and Co(3)O(4)/C were designed as carriers for the vanadium-substituted Keggin
Vanadium-Containing Keggin-Type Polyoxometalates, [VM(12)O(40)](3-) and [VVM(11)O(40)](4-) (M = Mo, W): Structural Characterization and Voltammetric, NMR, and EPR Studies Related to Electrochemical Reduction at Framework and Central Vanadium Sites.
Yokoyama S, Azuma S, Eguchi Y, Kodani K, Hasegawa T, Ogo S, Ota H, Guo SX, Boas JF, Zhang J, Bond AM, Ueda T. Yokoyama S, et al. Inorg Chem. 2024 Jan 8;63(1):117-128. doi: 10.1021/acs.inorgchem.3c01921. Epub 2023 Dec 23. Inorg Chem. 2024. PMID: 38141018
Vanadium is accommodated in both the framework (V(out)(V)) and central positions (V(in)(V)) in the Keggin-type polyoxometalates (POMs) [V(in)(V)V(out)(V)M(11)O(40)](4-) (M = Mo, W; V(in)(V)V(out)(V)M(11)) and in the central position in [V(in)(V)M
Vanadium is accommodated in both the framework (V(out)(V)) and central positions (V(in)(V)) in the Keggin-type polyoxometalates (POMs …
p-tert-Butylthiacalix[4]arene-supported high-nuclearity {Co24M8} (M=Mo or W) nanospheres and the hybrids with Keggin polyoxometalates.
Bi Y, Du S, Liao W. Bi Y, et al. Chem Commun (Camb). 2011 Apr 28;47(16):4724-6. doi: 10.1039/c0cc05574c. Epub 2011 Mar 17. Chem Commun (Camb). 2011. PMID: 21412539
Two hybrid assemblies (3 and 4) with two kind of nanoscaled cluster units, the spherical [Co(24)(TC4A)(6)(MO(4))(8)Cl(6)](2+) cation (1 and 2) and Keggin-type [PM(12)O(40)](3-) anion (M = Mo (1/3), W (2/4)), were solvothermally prepared and characterized, in which t …
Two hybrid assemblies (3 and 4) with two kind of nanoscaled cluster units, the spherical [Co(24)(TC4A)(6)(MO(4))(8)Cl(6)](2+) cation (1 and …
Redox-Responsive Host-Guest Association between gamma-Cyclodextrin and Mixed-Metal Keggin-Type Polyoxometalates.
Yao S, Falaise C, Khlifi S, Leclerc N, Haouas M, Landy D, Cadot E. Yao S, et al. Inorg Chem. 2021 May 17;60(10):7433-7441. doi: 10.1021/acs.inorgchem.1c00724. Epub 2021 Apr 29. Inorg Chem. 2021. PMID: 33915041
The complexation of Keggin-type polyoxometalates (POMs) with gamma-cyclodextrin (gamma-CD) leads to supramolecular inclusion assemblies in aqueous solution driven by a chaotropic effect. The strength of the interaction between gamma-CD and oxidized or one-electron reduced …
The complexation of Keggin-type polyoxometalates (POMs) with gamma-cyclodextrin (gamma-CD) leads to supramolecular inclusion assembli …
Electronic and magnetic properties of alpha-Keggin anions: A DFT study of [XM12O40](n-), (M = W, Mo; X = Al(III), Si(IV), P(V), Fe(III), Co(II), Co(III)) and [SiM11VO40](m- (M = Mo and W).
Maestre JM, Lopez X, Bo C, Poblet JM, Casañ-Pastor N. Maestre JM, et al. J Am Chem Soc. 2001 Apr 25;123(16):3749-58. doi: 10.1021/ja003563j. J Am Chem Soc. 2001. PMID: 11457107
Calculations based on density functional theory (DFT) have been carried out to investigate the electronic and magnetic properties of the alpha-Keggin anions mentioned in the title. The atomic populations and the distribution of the electron density computed for the studied …
Calculations based on density functional theory (DFT) have been carried out to investigate the electronic and magnetic properties of the alp …
Sandwich-type Hf(IV) and Zr(IV)complexes composed of tri-lacunary Keggin polyoxometalates: structure of [M(3)(mu-OH)(3)(A-alpha-PW(9)O(34))(2)](9-) (M = Hf and Zr).
Saku Y, Sakai Y, Shinohara A, Hayashi K, Yoshida S, Kato CN, Yoza K, Nomiya K. Saku Y, et al. Dalton Trans. 2009 Feb 7;(5):805-13. doi: 10.1039/b813710m. Epub 2008 Dec 4. Dalton Trans. 2009. PMID: 19156274
The syntheses and structures of hafnium(iv) and zirconium(iv) complexes with Keggin tri-lacunary polyoxometalates (POM) [A-alpha-PW(9)O(34)](9-), i.e., (Et(2)NH(2))(7)H(2)[Hf(3)(micro-OH)(3)(A-alpha-PW(9)O(34))(2)].11H(2)O (Et(2)NH(2)-) and (Et(2)NH(2))(7)H(2)[Zr(3)(micro- …
The syntheses and structures of hafnium(iv) and zirconium(iv) complexes with Keggin tri-lacunary polyoxometalates (POM) [A-alpha-PW(9 …
Synthesis and Characterisation of Monolacunary Keggin Monovanado-deca-tungstophosphate and Its Complexes with Transition Metal Cations.
Petrehele AIG, Duteanu N, Morgovan MC, Filip SM, Ciocan S, Marian E. Petrehele AIG, et al. Materials (Basel). 2023 Jan 14;16(2):827. doi: 10.3390/ma16020827. Materials (Basel). 2023. PMID: 36676564 Free PMC article.
Five new complexes with metal cations (Mn(2+), Fe(3+), Co(2+), Ni(2+), and Cu(2+)) of monolacunary Keggin monovanado-deca-tungstophosphate, K(8)[PVW(10)O(39)].15H(2)O, have been synthesised. The molar ratio of the combination between metal cations and K(8)[PVW(10)O(39)].15 …
Five new complexes with metal cations (Mn(2+), Fe(3+), Co(2+), Ni(2+), and Cu(2+)) of monolacunary Keggin monovanado-deca-tungstophos …
Keggin-Type Anions as Halogen Bond Acceptors.
Fotović L, Bedeković N, Stilinović V. Fotović L, et al. Cryst Growth Des. 2023 Mar 24;23(5):3384-3392. doi: 10.1021/acs.cgd.2c01509. eCollection 2023 May 3. Cryst Growth Des. 2023. PMID: 37159658 Free PMC article.
To study the potential of Keggin-type polyoxometalate anions to act as halogen bond acceptors, we have prepared a series of 10 halogen-bonded compounds starting from phosphomolybdic and phosphotungstic acid and halogenopyridinium cations as halogen (and hydrogen) bond dono …
To study the potential of Keggin-type polyoxometalate anions to act as halogen bond acceptors, we have prepared a series of 10 haloge …
Isopolyoxometalates derived from arylstibonic acids with "reverse-Keggin ion" structures based on [M(RSb)12O28] cores, M = Co(II) or Zn(II).
Nicholson BK, Clark CJ, Telfer SG, Groutso T. Nicholson BK, et al. Dalton Trans. 2012 Sep 7;41(33):9964-70. doi: 10.1039/c2dt30341h. Epub 2012 Jul 3. Dalton Trans. 2012. PMID: 22760243
Three of the complexes have the epsilon Keggin ion geometry, while the fourth is a delta isomer....
Three of the complexes have the epsilon Keggin ion geometry, while the fourth is a delta isomer....
Scanning tunneling microscopy investigation of nano-structured alpha-K5PW11(M x OH2)O39(M = Mn(II), Co(II), Ni(II), and Zn(II)) Keggin heteropolyacid catalyst monolayers.
Choi JH, Kang TH, Bang Y, Yoo J, Jun JO, Song IK. Choi JH, et al. J Nanosci Nanotechnol. 2014 Nov;14(11):8873-8. doi: 10.1166/jnn.2014.9945. J Nanosci Nanotechnol. 2014. PMID: 25958620
Nano-structured alpha-K5PW11(M x OH2)O39 (M = Mn(II), Co(II), Ni(II), and Zn(II)) Keggin heteropolyacids (HPAs) were investigated by scanning tunneling microscopy (STM) and tunneling spectroscopy (TS) measurements in order to elucidate their redox property an …
Nano-structured alpha-K5PW11(M x OH2)O39 (M = Mn(II), Co(II), Ni(II), and Zn(II)) Keggin heteropolyacids (HPAs) were in …
219 results