Reported here are both STM images and spatially resolved tunneling spectra of four different polyoxometalate (POM) structural class members: Keggin structure, H(3)[PW(12)O(40)] (spherical); Finke-Droege (FD) structure, Na(16)[Cu(4)(H(2)O)(2)(P(2)W(15)O(56))(2)] (prolate spheroidal); Wells-Dawson (WD) structure, H(7)[P(2)Mo(17)VO(62)] (prolate spheroidal); and Pope-Jeannin-Preyssler (PJP) struct...

We synthesized and tested three series of bisphosphonates for their activity in inhibiting the growth of three human tumor cell lines: MCF-7 (breast), NCI-H460 (lung), and SF-268 (CNS). The first series of compounds consisted of 49 nitrogen-containing bisphosphonates, the most active species being a tetrakispivaloyloxymethyl (POM) ester, having an (average) IC(50) of 6.8 microM. The second seri...

Soil organic matter (SOM) is essential for sustaining soil health and crop productivity. However, changes in SOM stocks in response to agronomic practices are slow and show years later when it is too late for adjustments in management. Identifying early indicators of SOM dynamics will allow early management decisions and quick remedial action. The objectives of this study were to evaluate long-...

Splitting of water to produce hydrogen and oxygen is a green effective method clean energy. Finding an efficient decomposition catalyst the key step realize decomposition. In this work, by choosing from literature, six polynuclear manganese (Mn) containing polyoxometalates (Mn-POMs) with different Mn-O clusters oxidation states Mn, [MnIIMnIIISiW10O37(OH)(H2O)]6? (Mn2-POM), [MnII3MnIII(H2O)2(PW9...

1. Lyotropic behavior of C12OazoE3OH: Pure amphiphiles with rigid segments like azobenzenes with a similar non-ionic head are able to form stable bilayers1. An aliquot of C12OazoE3OH (19 mM, in chloroform) was placed onto non-treated glass and evaporation the solvent at room temperature was allowed. Polarized optical microscopy (POM) observation through crossed polarizers revealed the smectic C...

No. 002-0001: Safeguarding CSR in Global Supply Chains: The Governance of Codes of Conduct in Buyer-Supplier Relationships Second World Conference on POM and 15th Annual POM Conference, Cancun, Mexico, April 30 May 3, 2004 By: Esben Rahbek Pedersen Department of Operations Management Copenhagen Business School Solbjerg Plads 3 DK-2000 Frederiksberg C E-mail: [email protected], Tel.: +45 38 15 27 41...

Pressed pellets of polyoxometalate (POM)-based materials are shown to undergo morphogenesis to produce microtubular network architectures without the need for a large single crystal precursor. The compression of the POM material into a pellet lowers the solubility sufficiently to allow tube initiation and growth from POMs that would otherwise be too soluble in their native crystalline state, th...

Acid and redox reaction rates of CH3OH-O2 mixtures on polyoxometalate (POM) clusters, together with isotopic, spectroscopic, and theoretical assessments of catalyst properties and reaction pathways, were used to define rigorous descriptors of reactivity and to probe the compositional effects for oxidative dehydrogenation (ODH) and dehydration reactions. P-MAS NMR, transmission electron microsco...