Crystal Engineering on Organic Pigments

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Diaryl pigments: <strong>Crystal</strong> <strong>Engineering</strong> Compd. Col. strength Conform. Packing SG, Z P. Yellow 12 (�) 100 % twisted herring bone P2 1/c, Z = 4 P. Yellow 12 (�) ... planar P. Yellow 13 141 % planar P. Yellow 14 (106 %) planar layer P1, Z = 1 P. Yellow 83 138 % planar herring bone P2 1/c, Z = 2 Are there solid solutions of P.Y.12 and P.Y.13/14 ? [M.U. Schmidt, R.E. Dinnebier, H. Kalkhof, J. Phys. Chem. B 111 (2007), 9722-9732]
Diaryl pigments: <strong>Crystal</strong> <strong>Engineering</strong> Compd. Col. strength Conform. Packing SG, Z P. Yellow 12 (�) 100 % twisted herring bone P2 1/c, Z = 4 P. Yellow 12 (�) ... planar P. Yellow 13 141 % planar P. Yellow 14 (106 %) planar layer P1, Z = 1 P. Yellow 83 138 % planar herring bone P2 1/c, Z = 2 Are there solid solutions of P.Y.12 and P.Y.13/14 ? Lattice energy minimizations: Yes! [M.U. Schmidt, R.E. Dinnebier, H. Kalkhof, J. Phys. Chem. B 111 (2007), 9722-9732]
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Crystal En
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Applications: - Laquers & paints -
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Example 1: Colours of quinacridones
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H N O H N O Isolated molecule Weak
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Polymorphs of quinacridone: A real
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Described polymorphs � Polymorphs
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Described polymorphs � � B I Po
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Described polymorphs � � B I
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Polymorphs of quinacridones � I
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� phase Quinacridone: Synthesis N
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Crystal En
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Crystal En
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Polymorph screening without knowled
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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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Page 90 and 91: O Violet pigment Example 3: Methyl-
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Page 112 and 113: Example 4: Diaryl Pigments CH 3 O C
Page 114 and 115: Example 4: Diaryl Pigments CH 3 O C
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Page 120 and 121: Pigment Yellow 14: Structure soluti
Page 122 and 123: Pigment Yellow 14: Synchrotron data
Page 126 and 127: Diaryl pigments: Understanding the
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Page 130 and 131: Diaryl pigments: Crystal</s
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Crystal Engineering on Organic Pigments

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