In the crown-ether complex, the metal ion fits into the cavity of the crown ether and is solvated by the oxygen atoms. The exterior of the complex is nonpolar, masked by the alkyl groups of the crown ether.
Arrow Alerts. Location-enabled apps and services track your iPhone by periodically querying it for location-based information. They may do this while being used or running in the background on your device. A little arrow appears on the iPhone's upper-right corner to advise you when data is shared. Arrows also appear within the Location Services settings screens to indicate when and what kinds of information was shared with whom.
From left to right, Laurel (Cassidy), Slade (Bennett), Felicity (Rickards), Oliver (Amell), John (Ramsey), Thea (Holland), and Roy (Haynes). Arrow is an American television series developed by Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg, based on the DC Comics character Green Arrow. Many of the other characters appearing in the series are also based on DC Comics characters. The series premiered on October 10, 2012, in the United States on The CW television network, and is currently in its fifth season. On January 8, 2017, The CW announced that Arrow would be renewed for a sixth season.