The influence of theboat-to-chain conversion on the demetallation of the nickel(II)compex of an open-chain tetramine containing a piperazine fragment

Massimo Boiocchi; Marco Bonizzoni; Luigi Fabbrizzi; Francesco Foti; Maurizio Licchelli; Angelo Taglietti; Michelej Zema

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The influence of theboat-to-chain conversion on the demetallation of the nickel(II)compex of an open-chain tetramine containing a piperazine fragment

机译：船到链转化对含哌嗪片段的开链四胺的镍（II）化合物的脱金属作用的影响

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The nickel(II)ocmplex with an open chain tetramien containign a piperazine fragment (1) displays an unusual resistance to demetallation in acidic solution an dexhibits a lifetime of about five minutes in a solution 0.1 M in HClO_4 and 7.0 M in NaClO_4.sluggishness with respect to the demetallation is ascirbed to the occurrence of the boat-to-chair conformational conversion of the piperazine fragment,which implies the passage through the highly energetic half-boat transition stte.The use of a high concentration of the inert electrolyte induces a 'saliting out' effect on both thermodynamics(stability of metal compelxes is enhanced)and kinetics(resistance to demetallation is increased).

机译：带有哌嗪片段（1）的四链镍（II）络合物在酸性溶液中显示出非凡的抗脱金属性，在0.1M HClO_4和7.0M NaClO_4溶液中的寿命约为5分钟。关于去金属化的原因是哌嗪片段从船到椅的构象转化，这意味着通过了高能半船过渡平台。使用高浓度的惰性电解质会引起“既对热力学（增强金属复合物的稳定性）又对动力学（对脱金属的抵抗力）都有影响。

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《Dalton transactions: An international journal of inorganic chemistry》 |2003年第4期|共6页
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Massimo Boiocchi; Marco Bonizzoni; Luigi Fabbrizzi; Francesco Foti; Maurizio Licchelli; Angelo Taglietti; Michelej Zema;
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1. The influence of theboat-to-chain conversion on the demetallation of the nickel(II)compex of an open-chain tetramine containing a piperazine fragment [J] . Massimo Boiocchi, Marco Bonizzoni, Luigi Fabbrizzi, Dalton transactions: An international journal of inorganic chemistry . 2003,第4期

机译：船到链转化对含哌嗪片段的开链四胺的镍（II）化合物的脱金属作用的影响
2. The influence of the boat-to-chair conversion on the demetallation of the nickel(II) complex of an open-chain tetramine containing a piperazine fragment [J] . Massimo Boiocchi, Marco Bonizzoni, Luigi Fabbrizzi, Dalton transactions: An international journal of inorganic chemistry . 2004,第4期

机译：船椅转换对含哌嗪片段的开链四胺的镍（II）配合物的脱金属作用的影响
3. Does a Reinforced Kinetic Macrocyclic Effect Exist? The Demetallation in Strong Acid of Copper(II) Complexes with Open and Cyclic Tetramines Containing a Piperazine Fragment [J] . Marco Bonizzoni, Luigi Fabbrizzi, Francesco Foti Chemistry: A European journal . 2004,第13期

机译：是否存在增强的动力学大环效应？含哌嗪片段的开放式和环状四胺与铜（II）配合物在强酸中的脱金属作用
4. Location of copper(II) within the PrP(106-126) fragment and influence of the metal ion on the conformational change of this peptide [C] . Giuseppe Pappalardo, Tiziana Campagna, Giulia Grasso, European Peptide Symposium . 2002

机译：PRP（106-126）内铜（II）的位置（106-126）片段和金属离子对该肽的构象变化的影响
5. INORGANIC COMPLEX COMPOUNDS CONTAINING POLYDENTATE GROUPS: STUDIES OF TETRAMINE AND PENTAMINE COMPLEXES OF COBALT(II), NICKEL(II), MANGANESE(II) AND IRON(11) IONS. [D] . RAMANUJAM, VENDATAPURAM VURUPPATTUR. 1958

机译：含多齿基团的无机复合物：钴（II），镍（II），锰（II）和铁（11）离子的四氢呋喃和戊酰胺复合物的研究。
6. Occupational asthma from nickel sensitivity: II. Factors influencing the interaction of Ni2+ HSA and serum antibodies with nickel related specificity. [O] . E Nieboer, S L Evans, J Dolovich 1984

机译：职业性哮喘对镍的敏感性：II。影响Ni2 +HSA和血清抗体与镍相关特异性相互作用的因素。
7. STEREOSELECTIVE INTERACTION BETWEEN α-AMINO ACIDS AND THE NICKEL(II) COMPLEXES OF OPTICALLY ACTIVE TETRAMINES INCLUDING TWO PYRROLIDINYL GROUPS [O] . Sadao Kitagawa, Tasuku Murakami, Masahiro Hatano 1974

机译：α-氨基酸与光学活性四胺的镍（II）复合物的立体选择性相互作用，包括两个吡咯烷基
8. Crystal Structure Changes in the Surface Layers of Nickel Samples Influenced by Periodic Heat-Treatment (Kristallostrukturnye Izmeneniya V Poverkhnostnykh Sloyakh Nikelevykh Obraztsov, Proiskhodyashchie Pod Vliyaniem Periodicheskikh Teplovykh Nagruzhenii) [R] . Gontareva, R. G., Tikhonov, L. V. 1967

机译：受定期热处理影响的镍样品表面层的晶体结构变化（Kristallostrukturnye Izmeneniya V poverkhnostnykh sloyakh Nikelevykh Obraztsov，proiskhodyashchie pod Vliyaniem periodicheskikh Teplovykh Nagruzhenii）

The influence of theboat-to-chain conversion on the demetallation of the nickel(II)compex of an open-chain tetramine containing a piperazine fragment

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