The space-group frequency for approximately 30 000 organic compounds in the NBS Crystal Data Identification File has been calculated for each of the 230 space groups.

No abstract

In sharp contrast to other methods which focus on the consequences of symmetry (such as dot products, d spacings etc.), the matrix approach deals with symmetry in its most abstract form-represented as matrices. The basis of the matrix approach is to generate the matrices that transform the lattice into itself.

Die Kondensation von Cu(I)‐thiophenolat, Benzotriazol und einem organischen Isocyanid liefert die Cluster (I), von denen (Ia) röntgenkristallographisch untersucht wird.

No abstract