X-ray studies on crystalline complexes involving amino acids and peptides. XXXIX. Crystal structures of malonic acid complexes of DL- and L-histidine. Preservation of aggregation pattern on reversal of chirality

Saraswathi NT.; Vijayan M.

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X-ray studies on crystalline complexes involving amino acids and peptides. XXXIX. Crystal structures of malonic acid complexes of DL- and L-histidine. Preservation of aggregation pattern on reversal of chirality

机译：对涉及氨基酸和肽的晶体复合物进行X射线研究。 XXXIX。 DL-和L-组氨酸的丙二酸复合物的晶体结构。保留手性反转的聚集模式

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The malonic acid complexes of DL- and L-histidine are made up of zwitterionic positively charged histidinium ions and semimalonate (hydrogen malonate) ions. They crystallise in space groups P2(1) and P2(1), respectively, with nearly the same unit-cell parameters. The molecules aggregate in the two complexes in a remarkably similar manner. The two sets of crystallographically independent molecules are related by a pseudo-glide plane. This pseudo-symmetry is almost exact except in the case of the alpha-carboxylate group and, to some extent, the alpha-C and the alpha-N atoms. Preservation of the aggregation pattern to such an extent on the reversal of chirality of half the amino-acid molecules is observed for the first time in amino-acid complexes. This is achieved at the cost of considerable conformational strain in one of the two histidinium ions in the L-histidine complex. [References: 33]

机译：DL-和L-组氨酸的丙二酸复合物由两性离子带正电的组氨酸离子和半丙二酸（丙二酸氢）离子组成。它们分别以几乎相同的晶胞参数在空间群P2（1）/ n和P2（1）中结晶。分子以非常相似的方式聚集在两个复合物中。两组在晶体学上独立的分子通过伪滑行平面关联。除了α-羧酸酯基以及在某种程度上α-C和α-N原子的情况以外，这种伪对称几乎是精确的。在氨基酸复合物中首次观察到在一半氨基酸分子的手性逆转的程度上保持聚集模式。这是以L-组氨酸络合物中的两个组氨酸离子之一的相当大的构象应变为代价的。 [参考：33]

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《Acta Crystallographica, Section B. Structural Science》 |2002年第4期|共6页
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Saraswathi NT.; Vijayan M.;
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1. X-ray studies on crystalline complexes involving amino acids and peptides. XXXIX. Crystal structures of malonic acid complexes of DL- and L-histidine. Preservation of aggregation pattern on reversal of chirality [J] . Saraswathi NT., Vijayan M. Acta Crystallographica, Section B. Structural Science . 2002,第4期

机译：对涉及氨基酸和肽的晶体复合物进行X射线研究。 XXXIX。 DL-和L-组氨酸的丙二酸复合物的晶体结构。保留手性反转的聚集模式
2. X-ray studies on crystalline complexes involving amino acids and peptides. XXXVII. Novel aggregation patterns and effect of chirality in the complexes of DL- and L-lysine with glutaric acid. [J] . Saraswathi NT, Manoj N, Vijayan M Acta Crystallographica, Section B. Structural Science . 2001,第3期

机译：对涉及氨基酸和肽的晶体复合物进行X射线研究。 XXXVII。 DL-和L-赖氨酸与戊二酸配合物的新型聚集模式和手性效应。
3. X-ray Studies on Crystalline Complexes Involving Amino Acids and Peptides. XXVIII. Recurrence of Characteristic Aggregation and Interaction Patterns in the Crystal Structures of DL- and L-Lysine Formate [J] . Stephen Suresh, M. Vijayan Acta Crystallographica, Section B. Structural Science . 1995,第3期

机译：涉及氨基酸和多肽的晶体复合物的X射线研究。二十八。 DL-和L-赖氨酸的晶体结构中特征聚集和相互作用模式的重复出现
4. ENANTIOSELECTIVE REDUCTION FROM QUATERNARY COPPER D,L AMINO ACID COMPLEXES: ORIGIN OF THE WEAK CHIRAL EFFECT OBSERVED WITH D/L ASPARTIC AND GLUTAMIC ACIDS [C] . Jean-Claude Tabet International Mass Spectrometry Conference . 2018

机译：从季铜D，L氨基酸复合物的对映选择性减少：用D / L天冬氨酸和谷氨酸观察到弱手性效应的来源
5. Reactivity of sandwich pi-complexes towards dithiocarboxylic acids: Synthesis and x-ray crystallographic studies of titanium, vanadium, and niobium inorganic/organometallic sulfur-containing complexes [D] . Andras, Maria Theresa. 1990

机译：三明治型pi配合物对二硫代羧酸的反应活性：钛，钒和铌无机/有机金属含硫配合物的合成和x射线晶体学研究
6. Probing the Structural Determinants of Amino Acid Recognition: X-Ray Studies of Crystalline Ditopic Host-Guest Complexes of the Positively Charged Amino Acids Arg Lys and His with a Cavitand Molecule [O] . Giovanna Brancatelli, Enrico Dalcanale, Roberta Pinalli, 2018

机译：探查氨基酸识别的结构决定因素：X射线研究带电荷分子的带正电荷氨基酸ArgLys和His的晶体对位宿主-客体配合物
7. X-ray Ray Studies on Crystalline Complexes Involving AminoAcids and Peptides. XXIV. Different Ionization States and Novel Aggregation Patterns in the Complexes of Succinic Acid with DL- and L-Histidine [O] . Prasad Sridhar G, Vijayan M 1993

机译：涉及氨基酸的晶体配合物的X射线研究酸和肽。二十四。琥珀酸与DL-和L-组氨酸的络合物中的不同电离态和新型聚集模式
8. Crystallographic Studies of Drug--Nucleic Acid Crystalline Complexes and Their Biological Implications [R] . Sobell, H. M., Jain, S. C., Sakore, T. D., 1978

机译：药物 - 核酸结晶复合物的晶体学研究及其生物学意义

X-ray studies on crystalline complexes involving amino acids and peptides. XXXIX. Crystal structures of malonic acid complexes of DL- and L-histidine. Preservation of aggregation pattern on reversal of chirality

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