By studying the reaction of Co （acae）3; PPh3 and Al（C2H5）3 with CO2 in ether, we have obtained two kinds of crystals. One is dark red, which we call Crystal Ⅰ, with composition of CoH（CO）（PPh3）3（C2H5）2O; th...By studying the reaction of Co （acae）3; PPh3 and Al（C2H5）3 with CO2 in ether, we have obtained two kinds of crystals. One is dark red, which we call Crystal Ⅰ, with composition of CoH（CO）（PPh3）3（C2H5）2O; the other is orange red, which we call Crystal Ⅱ, with the composition of CoH（CO）（PPh3）3. Both are decomposed very rapidly in the air. Crystal Ⅰ is a little bit stabler than Crystal Ⅱ. We studied the structures of these two crystals by the X-ray diffraction method. There was a brief introduction about the structure of Crystal Ⅱ. This article will describe mainly the structure of Crystal Ⅰ. Some data of the structure of Crvstal展开更多
Ⅰ. INTRODUCTION One of the principal aims of the chemically simulating studies of biological nitrogen fixation is the improvement of the catalyst of ammonia synthesis industrially. It will be very important for us to...Ⅰ. INTRODUCTION One of the principal aims of the chemically simulating studies of biological nitrogen fixation is the improvement of the catalyst of ammonia synthesis industrially. It will be very important for us to clarify the structure and functions of nitrogenase. Successful separation of a FeMo-co from the MoFe protein of the Azotobacter vinelandii (Az. v.) has made the studies on the active center of nitrogen fixation of nitrogenase enter a new stage. The molybdenum K-edge extended X-ray absorption fine展开更多
文摘By studying the reaction of Co （acae）3; PPh3 and Al（C2H5）3 with CO2 in ether, we have obtained two kinds of crystals. One is dark red, which we call Crystal Ⅰ, with composition of CoH（CO）（PPh3）3（C2H5）2O; the other is orange red, which we call Crystal Ⅱ, with the composition of CoH（CO）（PPh3）3. Both are decomposed very rapidly in the air. Crystal Ⅰ is a little bit stabler than Crystal Ⅱ. We studied the structures of these two crystals by the X-ray diffraction method. There was a brief introduction about the structure of Crystal Ⅱ. This article will describe mainly the structure of Crystal Ⅰ. Some data of the structure of Crvstal
文摘Ⅰ. INTRODUCTION One of the principal aims of the chemically simulating studies of biological nitrogen fixation is the improvement of the catalyst of ammonia synthesis industrially. It will be very important for us to clarify the structure and functions of nitrogenase. Successful separation of a FeMo-co from the MoFe protein of the Azotobacter vinelandii (Az. v.) has made the studies on the active center of nitrogen fixation of nitrogenase enter a new stage. The molybdenum K-edge extended X-ray absorption fine
