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Coprinopsis rugosomagnispora: a distinct new coprinoid species from Poland (Central Europe)

A new coprinoid fungus, Coprinopsis rugosomagnispora, is described from Poland (Central Europe). Its macromorphological characters are similar to species belonging to the subsection Nivei of Coprinus s.l. However, C. rugosomagnispora has unique micromorphological characters: very large, ornamented spores, voluminous basidia and cystidia, and smooth veil elements. The large spores ...

New Gel-Like Polymers as Selective Weak-Base Anion Exchangers

A group of new anion exchangers, based on polyamine podands and of excellent ion-binding capacity, were synthesized. The materials were obtained in reactions between various poly(ethyleneamines) with glycidyl derivatives of cyclotetrasiloxane. The final polymeric, strongly cross-linked materials form gel-like solids. Their structures and interactions with anions adsorbed were ...

ESI-MS detection of very weak π-Stacking interactions in the mixed-ligand sandwich complexes formed by substituted benzo-crown ethers and metal cations

The stability of the mixed-ligand complex formed by amino-benzo-15-crown-5 and nitro-benzo-15-crown-5, with a metal cation, [NH2B15C5+NO2B15C5+K]+, was found to be enhanced by π-stacking interactions. This conclusion was deduced by comparison of the abundance of the mixed-ligand complex with the abundances of homo-ligand complexes ([(NH2B15C5)2+K]+, [(NO2B15C5)2+K]+), as well as ...

Unusual ion UO4 − formed upon collision induced dissociation of [UO2(NO3)3]−, [UO2(ClO4)3]−, [UO2(CH3COO)3]− ions

The following ions [UO2(NO3)3]−, [UO2(ClO4)3]−, [UO2(CH3COO)3]− were generated from respective salts (UO2(NO3)2, UO2(ClO4)3, UO2(CH3COO)2) by laser desorption/ionization (LDI). Collision induced dissociation of the ions has led, among others, to the formation of UO4 − ion (m/z 302). The undertaken quantum mechanical calculations showed this ion is most likely to possess square ...

Anion-π interactions—interactions between benzo-crown ether metal cation complexes and counter ions

The loss of X· radical from [M + Cu + X]+ ions (copper reduction) has been studied by the so called in-source fragmentation at higher cone voltage (M = crown ether molecule, X− = counter ion, ClO 4 − , NO 3 − , Cl−). The loss of X· has been found to be affected by the presence/lack of aromatic ring poor/rich in electrons. Namely, the loss of X· occurs with lower efficiency for the ...