In 2019.0 CRYST GROWTH DES published article about THEORETICAL DATA-BANK; MOLECULAR-CRYSTALS; ENERGY; REFINEMENT; PREDICTION; PARAMETERS; QUALITY; PACKING; SYSTEM; ATOMS in [Sztylko, Marcin; Malinska, Maura; Hoser, Anna A.] Univ Warsaw, Fac Chem, Biol & Chem Res Ctr, Zwirki I Wigury 101, PL-02089 Warsaw, Poland; [Petricek, Vaclav] Acad Sci Czech Republ, Inst Phys, Na Slovance 2, Prague 18221, Czech Republic; [Gutmann, Matthias J.] Rutherford Appleton Lab, Sci & Tech Facil Council, ISIS Neutrons & Muons Facili, Harwell Sci Campus, Didcot OX11 OQX, Oxon, England in 2019.0, Cited 40.0. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4. Name: 4′-Hydroxyacetophenone
Technical progress in crystallographic instruments allows contemporary crystallographers to more routinely conduct excellent quality low-temperature diffraction measurements. As a result, even crystal structures that have been extensively studied at ambient conditions start to reveal their more complex nature. The importance of low-temperature measurements is discussed based on the new, modulated structures found for polymorphs of 4′-hydroxyacetophenone (HAP). Diffraction data for this polymorphic system have been collected in the temperature range from 40 K to 330 K. At 123 K, form II of HAP appears to be a new, commensurately modulated structure with a modulation vector q = [0.4, 0.0, 0.0]. The structure can be solved and refined with 10 molecules in the asymmetric unit. A further decrease of temperature to 40 K resulted in the discovery of a new, incommensurately modulated phase with four independent molecules in the P2(1) monoclinic space group with the modulation vector q = [0.37, 0.17, 0.0]. Consequences of modulation for the relative stability of polymorphs will be discussed.
Name: 4′-Hydroxyacetophenone. Welcome to talk about 99-93-4, If you have any questions, you can contact Sztylko, M; Malinska, M; Petricek, V; Gutmann, MJ; Hoser, AA or send Email.
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles