RUTHENIUM CARBONYL HYDRIDESX-RAY STRUCTURECLUSTER CHEMISTRYDYNAMIC BEHAVIORHYDROGEN-ATOMS(MU-H)4RU4(CO)10(DIPHOS)RU3(CO)12LIGANDSThe crystal and molecular structures of Ru-4(mu-H)(4)(CO)(11)(CNBut) (2), obtained with Ru-4(mu-H)(4)(CO)(10)(CNBut)(2) by hydrogenation of Ru-5(mu...
Reactivity patterns of heterobinuclear carbonyls: site selectivity in substitution reactions of (CO)4Ru(.mu.-PPh2)Co(CO)3 with phosphines and the x-ray str... Tara gum has been considered as a possible replacement for carob gum in the formation of kappa carrageenan-galactomannan mixed gels....
With Mother's Day approaching,Bruce,a boy of nine years old,with his little sister Alina-six years old wanted their mother to be the happiest one of that day.But they were too young to get a job,even if a part-time one.What could they do?There was only one...
好评5.0 接诊量5千 同行认可99 可开处方 高性价比 服务态度好 专业有效 耐心细致 南宁市 问题描述:大便不成型,大便次数增多(男,25岁) 分析及建议: 根据你的情况,可能是急性肠胃炎引起,你可以口服藿香正气液(无酒精),一次两只,一天三次。吃的东西太杂,把胃伤了,吃点药恢复一下。你可以买一个摩罗丹吃吃。平...
very much,because we have PE class and we can play football on Fridays.We have lunch at school.My favourite food is chicken.It is delicious.And my favourite drink is milk.I am helpful.On Saturdays,I often wash my clothes.On Sundays,I often do my homework and watc...
(18)],respectively.Thestructure of complex 16centre dot0.5cyclohexane has been determin4ed by X-ray crystallography.The Ru-Ru bond distance in the [Ru_2(#mu#-HNOCC_4H_3S)_4(thf)_2]~+ unit is 2.286(2)A.Amagnetic study,in the 2-300K temperature range,of thecompounds is described....
问题描述:大便不成型,大便次数增多(男,25岁) 病情分析:根据你的情况,可能是急性肠胃炎引起,你可以口服藿香正气液(无酒精),一次两只,一天三次。吃的东西太杂,把胃伤了,吃点药恢复一下。你可以买一个摩罗丹吃吃。平时如果吃不好东西。患者咨询记录 医生...
首先,胃壁在分泌盐酸以后,盐酸由于受到黏膜表面上皮细胞的阻挡,它不会倒流,也就不会腐蚀胃壁。万一上皮细胞遭到破坏,黏膜会分泌黏液,对盐酸有一定的缓冲作用,也能防止粘附在胃黏膜表面的盐酸进入内部。胃黏膜让上皮细胞不停地进行代谢更新,阻止胃蛋白酶吸附在黏膜上