WebFeb 6, 2024 · New Pb(II)-Ammine complexes as intermediates from the interaction of CH 3 NH 2 with PbX 2 and CH 3 NH 3 PbX 3 (X=Cl, Br) M. Sc. Michael Krummer, Corresponding Author. ... Our investigations are also relevant for the synthesis of PbX 2-based perovskite materials and the processing of devices based on these compounds. WebICH Q7 states that an “API starting material” is a raw material, intermediate, ... The ICH Q11 general principles apply to the selection of starting materials for linear or convergent syntheses.
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