Polymorph of a Latent Pyrrolopyrrole Pigment: 1,4-Diketo-3,6-Diphenyl-Pyrrolo-3,4-c-Pyrrole

机译：潜在吡咯并吡咯颜料的多晶型物：1,4-二酮-3,6-二苯基-吡咯并-3,4-c-吡咯

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The title compound is a soluble precursor ("latent pigment") of diketopyrrolopyrrole pigment (DPP) that can be used for electronic and imaging applications. Two crystal forms (α& β) are known to exist in powders. Therefore, an attempt has been made in the present investigation to carry out full structure analysis on single crystals of both modifications. In the α-form, there are two independent molecules (A & B) characterized by C_1 and C_i symmetriesrespectively, and the space group P2_1. The molecules are stacked in the sequence of -A-A-B-A-A-B-... in a fashion "herringbone". On the other hand, theβ-form crystallizes in the space group of P2_1/c and the molecule belongs to C_1 symmetry. The molecules are stacked along the a-axis relative to each other in a parallel arrangement.

机译：标题化合物是二酮吡咯并吡咯颜料（DPP）的可溶性前体（“潜在颜料”），可用于电子和成像应用。粉末中存在两种晶型（α＆β）。因此，在本研究中已经尝试对两种变体的单晶进行完整的结构分析。在α形式中，存在两个分别具有C_1和C_i对称性的独立分子（A和B），以及空间群P2_1 / n。分子以“人字形”的形式按-A-A-B-A-A-B -...的顺序堆叠。另一方面，β-型在P2_1 / c的空间群中结晶并且该分子属于C_1对称性。分子以平行排列的方式沿a轴相对于彼此堆叠。

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《ISamp;T's NIP19; International Conference on Digital Printing Technologies; Sep 28-Oct 3, 2003; New Orleans, Louisiana》|2003年|p.665-668|共4页
会议地点 New Orleans LA(US);New Orleans LA(US)
作者
J. Mizuguchi;
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Graduate School of Engineering, Yokohama National University Yokohama, Kanagawa, Japan;

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正文语种 eng
中图分类轻工业、手工业;
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1. A pigment precursor based on 1,4-diketo-3,6-diphenyi-pyrrolo[3,4-c]-pyrrole and its regeneration into the pigment [J] . Mizuguchi J Journal of Imaging Science and Technology . 2005,第1期

机译：基于1,4-二酮-3,6-二苯并吡咯并[3,4-c]-吡咯的颜料前体及其再生成颜料
2. Spectral and Crystallographic coincidence in a mixed crystal of two components and a crystal of their hybrid component in pyrrolopyrrole pigments [J] . J.Mizuguchi, H.Shikamori The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2004,第7期

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3. Spectral and Crystallographic coincidence in a mixed crystal of two components and a crystal of their hybrid component in pyrrolopyrrole pigments [J] . J.Mizuguchi, H.Shikamori The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2004,第7期

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4. Polymorph of 1,4-diketo-3,6-dipyridyl-pyrrolo-3,4-cpyrrole [C] . Tomohiko Imoda, Hiroo Takahashi, Jin Mizuguchi International Conference on Digital Printing Technologies; 20041031-1105; Salt Lake City,UT(US) . 2004

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Polymorph of a Latent Pyrrolopyrrole Pigment: 1,4-Diketo-3,6-Diphenyl-Pyrrolo-3,4-c-Pyrrole

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