Mixing diagrams

Shibue, Y. (1991) Mixing diagrams for hydrothermal solutions Applications to interpretation of fluid inclusion data of hydrothermal ore deposits in Japan. Geochem. J., 25, 75-93. 

Several studies have examined the partitioning of U on particles and colloids. Results from detailed sampling and particle separation in the Amazon estuary shows that most of the uranium at the Amazon River mouth is associated with particles (>0.4 im) and that >90% of the uranium in filtered water (<0.4 im) is transported in a colloidal phases (from a nominal molecular weight of 10 000 MW up to 0.4 im) (Swarzenski et al. 1995 Moore et al. 1996). Mixing diagrams for uranium in different size fractions in the Amazon estuary reveal that uranium in all size fractions clearly display both removal and substantial input during mixing. 

Abstract. The —> um° decay is studied using the method of phenomenological chiral Lagrangians. Obtained in the framework of this method the expression of weak hadronic currents between vector and pseudoscalar mesons has been checked and it is shown that this decay channel proceeds only due to the — p - mixing diagram. 

A configuration-mixing diagram for this reaction provides an alternative explanation for the large -value. Three configurations, [54] to [56], are... 

Scheme 19. A VB Mixing Diagram Showing the Splitting of the Kekule Structures into the Twin States, , and P a...

Scheme 36. (a) Kekule Structures for Naphthalene, (b) A VB Mixing Diagram Which Shows the Twin States Generated from the Ag and B2u Combinations of the Kekule Structures... 

FIGURE 2.1 A VB mixing diagram showing the formation of the states of the H—H bond from the covalent and ionic structures. 

FIGURE 5.2 A VB mixing diagram for the formation of the symmetry-adapted states of 02 from the biradical (1, 1 ) and perfectly paired (2, 2 ) structures. 

VALENCE BOND CONFIGURATION MIXING DIAGRAMS GENERAL FEATURES... 

VALENCE BOND CONFIGURATION MIXING DIAGRAM WITH IONIC INTERMEDIATE CURVES... 

Valence Bond Configuration Mixing Diagram for Proton-Transfer Processes... 

Insights from Valence Bond Configuration Mixing Diagrams One Electron Less-One Electron More... 

FIGURE 7.1 (a) The YB structures and their mixing diagram leading to the states of the H—H bond, (b) A Schematic MO representation of the first singlet excited state and its correspondence to the YB representation. 

FIGURE 7.3 (a) Kekule structures for allyl radical and their mixing diagram leading to... 

Benzene is another molecule where molecular symmetry can be useful for construction of the ground and covalent excited states (5,6,16,17,24). The molecule possesses five covalent VB Rumer structures, two are the Kekule structures, and the three Dewar types, shown in Fig. 7.4a. It is seen that the Kekule structures are mutually transformable by the D6h point group operations i, C2, and av. Consequently, we can make two linear combinations the positive one is the totally symmetric Aig state, which gives rise to the ground state, while the negative one is the B2U state, which corresponds to the excited state. This is shown in the VB mixing diagram in Fig. 7.4b. 

FIGURE 7.6 (a) Kekule structures of naphthalene, (b) The corresponding VB mixing diagram, (c) The b2u mode that interchanges Ki and K, in the VBSCD. 

FIGURE 7.9 (a) Covalent resonance structures for butadiene and their overlap integral, (b) A VB mixing diagram of the resonance structures yielding the covalent ground and excited states, (c) The major 1,4-biradical character of the 2 Ag state. 

The Rc structure transforms as Bi (in C v), while Rr and / are mutually transformable via the crv and C2 symmetry elements, and therefore their linear combinations transform as Bi and A2. Part (b) shows the VB mixing diagram... 

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