拾落穗
发表于 2025-3-26 22:15:02
Rotaxanes and Catenanes in Action,ation state of the copper centre (I or II) entirely determines the set of ligands coordinated to the metal. Oxidizing or reducing the central copper atom thus induces a complete gliding motion of one cycle within the other. This process can be regarded as electrochemically triggerred swinging of the copper catenate.
渗透
发表于 2025-3-27 02:14:04
,Organic , Antiferromagnet, ,-Mpynn,·,,,endence of the heat capacity of .-MPYNN.·(BF..)0.72.0.28 whose magnetic parameters are .1/.B=11.3 K and .2/.B=-1.2 K, suggests a short range magnetic order around 1 K due to .2, but does not show any signal of a long range order down to 0.1 K. This supports the presence of the spin frustration.
不成比例
发表于 2025-3-27 07:45:30
,1,2,4-Triazoles as Ligands for Iron(II) High Spin ↔ Low Spin Crossovers, the triazole ring, other ligands, additional solvent molecules, counter ions and actual geometry. Hexakis(triazole)Fe(II) complexes almost always give a spin transition, either by cooling down from room temperature or by warming up.
甜得发腻
发表于 2025-3-27 13:07:23
F. Vögtle,M. Händel,T. Schmidt,R. Jäger,A. Archuten stärker beschränkt (Wiegand 1992: 25, 27). Und die Ausländerfeindlichkeit verbindet sich in manchen Bevölkerungsteilen mit nationalistischen und demokratiefeindlichen Elementen zu einem rechtsextremen Weltbild (Müller, Schubarth 1992: 16 ff). In Westdeutschland macht die Demoskopie ein Potential
吼叫
发表于 2025-3-27 14:58:10
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勤勉
发表于 2025-3-27 18:46:45
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飓风
发表于 2025-3-28 01:59:07
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sparse
发表于 2025-3-28 04:00:19
Mechanically-Interlocked Molecules: Prototypes of Molecular Machinery,e possibility of employing the concept of self-assembly to generate wholly-synthetic systems that mimic the functions of their biotic counterparts.. The efficiency and high degree of control, associated with self-assembly processes, provide a powerful route to the construction of complex abiotic sys
防水
发表于 2025-3-28 09:27:22
Towards Controllable Catenanes and Rotaxanes, on being able to control the dynamic motion of the mechanically interlocked components after their assembly has been achieved. For some time, we have been striving to fine-tune the noncovalent bonding interactions between the components in catenanes and rotaxanes, through the use of carefully chose
馆长
发表于 2025-3-28 10:58:42
Assemblage of Organic Polyradicals with the Aid of Magnetic Metal Ions and Ordering of Their Spins ical . . The intramolecular spin alignment in these systems is based on orthogonality of the singly occupied orbitals either of the one-centered diradical, carbenes, or the .-phenylene diradicals having right topological symmetry . Since the one-dimensional spin alignment cannot in principle a