This disclosure relates to an ansa-metallocene compound of a novel structure that can provide various selectivities and activities to polyolefin copolymers, a preparation method thereof, and a method for preparing polyolefins using the ansa-metallocene compound.
                            本公开涉及一种新结构的ansa-
金属茂化合物,可以为聚烯烃共聚物提供各种选择性和活性,其制备方法以及使用该ansa-
金属茂化合物制备聚烯烃的方法。