Crystal Engineering on Organic Pigments

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O R H N N Examples for <strong>Crystal</strong> <strong>Engineering</strong> N O H N O Colour Cl Cl O N Density O N H N N H R O R CH 3 N H 2 N N O H O O H N O Photostability CH 3 CH 2 O . H N Cl H O N N N O H N . .. .. Cl C H 3 N H . O . - Colour strength (Extinction coeff.) - Price R
Example 1: Colours of quinacridones H Quinacridone (Pigment Violet 19) Used for cars, plastics, etc. Production: >> 1000 t / year Sales: > 100 Mio € / year N O O N H
Page 1 and 2: Crystal En
Page 3: Applications: - Laquers & paints -
Page 7 and 8: H N O H N O Isolated molecule Weak
Page 9 and 10: Polymorphs of quinacridone: A real
Page 11 and 12: Described polymorphs � Polymorphs
Page 13 and 14: Described polymorphs � � B I Po
Page 15 and 16: Described polymorphs � � B I
Page 43 and 44: Polymorphs of quinacridones � I
Page 45 and 46: � phase Quinacridone: Synthesis N
Page 51 and 52: Polymorph screening without knowled
Page 53 and 54: Polymorphism of Pigment Red 53:2 Na
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Polymorphism of Pigment Red 53:2 Na
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� Polymorphism of Pigment Red 53:
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Example 2: Weather fastness of Pigm
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N H 2 N N Pigment Red 170 O H O O H
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N H 2 N N Pigment Red 170 O H O O H
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Extraction of reliable reflection i
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Determination of crystal structures
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Lattice energy minimizations (CRYSC
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Pigment Red 170 P2 1 /n, Z = 4, a =
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Pigment Red 170: New derivatives an
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O Violet pigment Example 3: Methyl-
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Methyl-dioxazine: Structure solutio
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Crystal structure
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Crystal structure
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Crystal structure
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Methyl - ethyl compound O C H 3 H N
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H N O N H3C N O O C H 3 Cl Cl Methy
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Solid solution Solid solution (�
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Crystal structure
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Example 4: Diaryl Pigments CH 3 O C
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Example 4: Diaryl Pigments CH 3 O C
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Crystal structure
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Pigment Yellow 14: Structure soluti
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Pigment Yellow 14: Structure soluti
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Pigment Yellow 14: Synchrotron data
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Crystal structure
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Diaryl pigments: Understanding the
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Diaryl pigments: Understanding the
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Diaryl pigments: Crystal</s
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Crystal Engineering on Organic Pigments

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